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Main Boards => PowWow => Topic started by: Trab on July 12, 2012, 05:26:00 PM

Title: Will restringing change my poundage ?
Post by: Trab on July 12, 2012, 05:26:00 PM
Both my longbow and recurve need new strings. I will be taking them both down to my local archery shop soon. Having never had them restrung, I am wondering if the poundage will be matched after doing so.
Thanks for any help......
Trab
Title: Re: Will restringing change my poundage ?
Post by: bamboo on July 12, 2012, 05:46:00 PM
in a word --nope--let it settle in and set the brace and you'll be fine
stomville huh--my old stompin grounds!!
Title: Re: Will restringing change my poundage ?
Post by: JamesKerr on July 12, 2012, 06:00:00 PM
A new string should not affect anything after it is settled in and you get your brace height set where it was.
Title: Re: Will restringing change my poundage ?
Post by: L82HUNT on July 12, 2012, 06:18:00 PM
If you go from dacron to FF your poundage will change.  Dacron will stretch more even a 28" draw yours limbs will not be bending as much.  A FF string will stretch less more limb bend, it could be a few lbs differance
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 12, 2012, 08:02:00 PM
Actually it depends on the elasticity of the string, and the strings elasticity memory.

Going from a string with a slower elasticity memory to one with a faster memory, can actually increase the draw weight as much as 4# even when the bow is set at the exact same brace height as the older string.

Example:
My BW PMA is 64# drawn to 29" with a 14 strand DF97 string on it. With a 9 strand UltraCam string, and the bow set at the exact same brace height as with the DF97, it is 68# at 29"

If you don't want to make any changes to your setup/tune, you better get a string just like the old one, or as close as you can get.

Rick
Title: Re: Will restringing change my poundage ?
Post by: Hud on July 12, 2012, 09:37:00 PM
You should learn to do it and carry an extra string that is broken in (shot some) so you know where the nocking point and height is for each string.

If you buy 2 strings for each bow from the custom string makers they will be the same, and last longer, because the flemish loops will be made right and fit better.  I am not knocking the local shop, but if they buy their strings, they probably won't be the same quality IMO.    :thumbsup:
Title: Re: Will restringing change my poundage ?
Post by: macbow on July 12, 2012, 09:46:00 PM
I've never heard before of a 4# change in a bow weight with different strings and the same brace height. Heard of different arrow speeds. And changes,after stretching etc.
If that were the case folks could adjust a recurves bow weight by purchasing various strings.
Maybe it's a BW thing heard lots of different things concerning arrow spine etc.
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 12, 2012, 10:24:00 PM
macbow, it's not just a BW thing.

Has to do with the strings length at full draw.

A string with a faster elasticity memory will actually be shorter at draw than one with a slower memory, even though they are the same length at brace, thus it is bending the limbs a little more, and increasing the draw weight.

A bow (any bow) is at it's highest in line string stress when the bow is at brace, and at the apex of the shot. The string stress actually decreases as the bow is drawn.

Rick
Title: Re: Will restringing change my poundage ?
Post by: bamboo on July 13, 2012, 07:39:00 AM
--please explain how you've been measuring the string at full draw--
Title: Re: Will restringing change my poundage ?
Post by: Pete McMiller on July 13, 2012, 08:17:00 AM
I am finding this discussion very counter intuitive, almost to the point of disbelief, but, I'm trying to be more open minded in my old age and would like to learn more.  Where would I turn if I wanted to read up on a bow changing weight with different strings, string elasticity, etc.?
Title: Re: Will restringing change my poundage ?
Post by: macbow on July 13, 2012, 08:27:00 AM
This is something very new to me.
Good explanation, but 4# worth of difference?
If the new string materials do change the game that much I 'd also like to read more. Also are there trade offs to the detriment of the bow?
Ron
Title: Re: Will restringing change my poundage ?
Post by: Blackstick on July 13, 2012, 09:14:00 AM
This is interesting and something I've never considered before. It actually makes sense the way Rick describes it. This seems to be easily testable for someone with a scale and different strings.

Now, I'm wondering if there would be a difference between a Flemish twist and endless loop string.
Title: Re: Will restringing change my poundage ?
Post by: LBR on July 13, 2012, 10:03:00 AM
Re-tuning is a good idea after changing strings, regardless.  You may need to make minor adjustments.

4# of draw weight equals over an inch of draw length with most bows--close to 2" with some.  Dynaflight '97 doesn't stretch anywhere close to that--especially not 14 strands.  Dacron won't stretch that much on a bow.  If there's 4# difference from UC to DF '97, then there should be something like 10# difference from UC to dacron, since dacron has tons more stretch.  Got to be something else going on there, or I'm reading it wrong.  

I'll do it again out of curiosity (out of town for the weekend), but I've measured the draw weight on my longbow several times with different strings--it's been the same as it was when the bowyer measured it with his tillering string (dacron I'm sure).

The draw weight can be changed a small amount with different brace heights, but not a big amount.

Chad
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 13, 2012, 10:11:00 AM
please, no offsite links to other archery forums
Title: Re: Will restringing change my poundage ?
Post by: LBR on July 13, 2012, 10:22:00 AM
I'm trying to keep it simple.  A 4# loss in draw weight is equivelent to over an inch loss in draw length with that poundage bow, pending it doesn't stack like crazy (and I'm sure a BW doesn't).  Corrrect?

You aren't going to get 14 strands of Dynaflight '97 to stretch even a half inch, especially with just 64# of resistance.  On my jig, I can get maybe 1/2" with approximately 300# of resistance.  There's going to be practically no noticeable stretch with 14 strands with 64 (or 68) pounds of resistance at 29" of draw.  If you were loosing 4# just due to a DF97 string, then you should be loosing 10# or more with dacron--I don't see that happening either, as it's not going to stretch 3+ inches at draw.

There's just something that was overlooked somewhere--not hard to do.

Chad
Title: Re: Will restringing change my poundage ?
Post by: Pete McMiller on July 13, 2012, 10:26:00 AM
Very interesting Rick, thanks for the link.  One question:  What is and how do you measure "in line string stress".
Title: Re: Will restringing change my poundage ?
Post by: bamboo on July 13, 2012, 10:35:00 AM
how many shots on the strings before the testing??did you measure the brace after?
Title: Re: Will restringing change my poundage ?
Post by: LBR on July 13, 2012, 11:40:00 AM
I must be missing something here.

"A bow (any bow) is at it's highest in line string stress when the bow is at brace, and at the apex of the shot. The string stress actually decreases as the bow is drawn."

How does a string stretch more when the stress is decreased?  Or am I reading this wrong?
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 13, 2012, 12:08:00 PM
Chad, your reading it wrong (I think).

The string/strings actually begin to contract/shrink as the bow is being drawn, and the inline stress starts to decrease.

The string with the fastest rate of contraction will be the string that yields the highest draw weight.

Of couse if you were to hold both strings at full draw for a length of time, they would probably equalize, but that isn't somethng I have tested. I know they have never equalised during the amount of time it takes to get the measurements.

Pete - inline stress is measured with a cable tensiometer, or you can do it the hard way, and use an inline scale on the string.

bamboo - for that particular test both strings were shot in strings. Probably several hundred shots on each. Yes, I checked brace height after testing, and it remained the same.

Chad - as a side note to this subject - If I build a string for someone, and the measurement they give me is from their relaxed string measurement. Even if I hit that measurement exactly, my string will be to short for them to use on their bow. Why? Because the string I build won't stretch as much on the bow as most others.

I did not intend, or want this to turn into a plug for my strings. I apologise, that it seems to have done so, so I will bow out now.
Title: Re: Will restringing change my poundage ?
Post by: Pete McMiller on July 13, 2012, 12:39:00 PM
Thanks Rick,

I'm still trying to wrap my head around these concepts and may have to play around with my own set ups.  Some of this stuff just boggles my mind..........and I'm one of those anal retentive guys that that enjoys the minutae of the esoteric.

BTW:  I never thought it was about a specific string maker and didn't even know you made strings until this last post.
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 13, 2012, 12:50:00 PM
QuoteBTW:  I never thought it was about a specific string maker and didn't even know you made strings until this last post. [/QB]
OOOOPs   :banghead:  

I'll add one more thing, and then I really will bow out.

The inline string stress at brace on a recurve will a lot of the time be from 18 - 25 percent greater in poundage than the draw weight of the bow. That depends on the bow, and the amount of preload it yields.

On most lonbows it is from 10 - 15 percent increase. Some have higher, and closer to that of a recurve, but few.
Title: Re: Will restringing change my poundage ?
Post by: olddogrib on July 13, 2012, 01:05:00 PM
Trab,
I'm definitely not knowledgeable enough on the matter to explain why, but would highly recommend re-checking the bow's tune after changing strings unless your replacing it with an identical one.  My experience has been that material, # of strands, etc. can make your arrow appear slightly weak or stiff after a change. Most of the time it's required nothing more than tweaking point weight.  That's one reason I prefer to shoot 150-175 gr. heads to give me some range on either side. Obviously you need to reproduce your brace height and keep it there as the new one stretches in also.
Title: Re: Will restringing change my poundage ?
Post by: Caughtandhobble on July 13, 2012, 01:48:00 PM
Yes there is a difference is strings...

I do shoot Rick's strings and I had to increase my arrow spine when I started using his strings. I was shooting FF before I started using Rick's strings and the difference was astonishing.

PS... FYI, I do not know Rick, we've never met but he makes a fine string.
Title: Re: Will restringing change my poundage ?
Post by: on July 13, 2012, 03:42:00 PM
I think that is where some fellows are finding that their Hills are way stiffer than they ordered. The Hill standard is dacron, add a fast flight and the claims of miss marked bows come marching in.  On one that I tillered myself, it drew 55@25, 57.5@26 and 60@27, I put a padded fast flight on it and it jumped up over two pounds.  No big deal, I like how it shoots with it.
Title: Re: Will restringing change my poundage ?
Post by: Caughtandhobble on July 13, 2012, 03:45:00 PM
QuoteOriginally posted by pavan:
I think that is where some fellows are finding that their Hills are way stiffer than they ordered. The Hill standard is dacron, add a fast flight and the claims of miss marked bows come marching in.
That's not the case here on my part   :)
Title: Re: Will restringing change my poundage ?
Post by: on July 13, 2012, 03:48:00 PM
Did you get a heavier than expected longbow?
Title: Re: Will restringing change my poundage ?
Post by: Caughtandhobble on July 13, 2012, 04:01:00 PM
QuoteOriginally posted by pavan:
Did you get a heavier than expected longbow?
Negative, I my bows are rated for FF and are spot on specs. Rick makes the skinny strings and they do require more spine from an arrow than the standard run of the mill FF strings.

I'm a tuning nut to the point that I've been called anal. When I put the 1st string that I got from him my bare shaft poi was about a foot to the right (I'm right handed). I can't verify that the strings have actually changed the poundage itself but I can testify that the strings increases the dynamic spine required.
Title: Re: Will restringing change my poundage ?
Post by: on July 13, 2012, 04:14:00 PM
On my longbows a fast flight will put me one spine size up in aluminum and  5 to 10 pounds spine up with cedar arrows.
Title: Re: Will restringing change my poundage ?
Post by: sledge on July 13, 2012, 04:22:00 PM
does the weight increase of the new string material translate to arrow speed at a higher, lower, or equal rate compared to what 1 might expect from a bow of similar additional weight, but with the original string material?

thanks.

joe
Title: Re: Will restringing change my poundage ?
Post by: Jeff Strubberg on July 13, 2012, 04:46:00 PM
Hrm...

The only way I can see a string change affecting draw weight is if the string stretched enough during the draw to affect how far the limbs pulled during the draw.

If the stretch of the string materials are similar, meaning you are bending the limb the same distance, the weight would have to stay the same.


QuoteThe string/strings actually begin to contract/shrink as the bow is being drawn, and the inline stress starts to decrease.
Say what?
Title: Re: Will restringing change my poundage ?
Post by: LBR on July 13, 2012, 05:52:00 PM
"The string/strings actually begin to contract/shrink as the bow is being drawn, and the inline stress starts to decrease."

How does adding tension reduce tension?

"If I build a string for someone, and the measurement they give me is from their relaxed string measurement. Even if I hit that measurement exactly, my string will be to short for them to use on their bow. Why? Because the string I build won't stretch as much on the bow as most others."

A flemish string is going to settle some, regardless of who makes it or what material it's made from.  I always ask for a measurement under tension for the same reason--strings contract when tension is removed.  Measure it off the bow, it's going to be short.

Again, if you are showing a 4# draw weight difference with everything else identical, just by changing the string, something is missing.
Title: Re: Will restringing change my poundage ?
Post by: Trab on July 13, 2012, 09:38:00 PM
Sorry guys, been out of the house all day and haven't been able to thank everyone for their thoughts and advice. From the general sounds of things, I need to match what I had, and then can expect minimal changes if at all....
Much obliged !!        :thumbsup:  
Trab
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 13, 2012, 10:01:00 PM
OK, you drew me back in.   :)  

Let me see if I can explain it.

As the limbs bend you are adding load to them yes, but that same bending is lending leverage to the string, because the stress is no longer being applied to it on a straight line.

Couple that leverage with the 3rd contact point (you fingers), and the string tension actually does decrease as the bow is drawn.

Not counting the apex of the shot - The string tension is at it's highest point when the bow is setting at brace. Any decreas of in line stress, and the string will begin to contract just like any material that has any amount of elasticity.

Trust me - I didn't believe it either, but after after having it explained to me by a cable engineer, and then testing it myself, my eyes were opened. Amazed would be a good way of putting it.

I've repeated the test several times with both recurve & longbow, and the results are always the same, which is - there is always a decrease in string stress as the bow is drawn, and often there is an increase in draw weight between to different strings. The draw weight change will vary, but as stated before, I've seen as much as 4# increase.

Rick
Title: Re: Will restringing change my poundage ?
Post by: LBR on July 14, 2012, 01:02:00 AM
Ok, for the sake of argument say that is the case.  

A 4# difference in draw weight means over an inch of draw length lost.  Dynaflight doesn't have anything close to that kind of elasticity.  Dacron doesn't have that kind of elasticity--not even artificial sinew.
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 14, 2012, 01:32:00 AM
Chad, what are you doing up so late?

I could ask the same of myself. You know us old guys need our sleep.
Probably like me, and tons of stuff to finish up before the weekend.

Think of it like this.

From how you are stating it - What you are seeing as the draw weight increase is only the bending of the limbs created by the increase of the horizontal draw measurement.

Now look at it this way - a draw weight increase resulting from only the bending of the limbs. Pretty much the same thing as a shorter string.

Shortening of the string increases brace height yes, and it increases the draw weight of the bow, but without changing the actual draw length on the horizontal plane. It is simply bending the limbs more due to the shorter string length.

Now - think about how far the limbs would actually have to travel on the draw, to make a 1/4" difference in the tip to tip measurement of the limbs.

Best I got right now. I'm to tired to put much into it.

Night Brother. Have a great weekend.

Rick
Title: Re: Will restringing change my poundage ?
Post by: on July 14, 2012, 03:45:00 AM
Rick has it right. If you want to really make a bow jump in poundage that has had a flemish dacron on it, put an endless fast flight on the bow, no twists to stretch at all.  Try it on a bow that you don't care if the tips snap off.
Title: Re: Will restringing change my poundage ?
Post by: bamboo on July 14, 2012, 05:46:00 AM
i see it like this--3/16"--really?--4#?!--i call pseudo science!!---the guy asked a simple question which called for a simple answer!!
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 14, 2012, 09:45:00 AM
bamboo - you need to look at it again.

The 3/16" was when drawn to 28", and there was only a 2# difference.

The 4# difference is when drawn to 29"

Pseudo science? Really now   :goldtooth:
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 14, 2012, 09:48:00 AM
Oh, and P.S.

Yes the guy asked a simple question, and I gave an answer.

Yes - changing the string can make a difference in draw weight of the bow. That don't mean it will. Just means there is the possibility.
Title: Re: Will restringing change my poundage ?
Post by: elknutz on July 14, 2012, 10:09:00 AM
Thanks Rick, I wasn't buying it at first but your explanation certainly makes sense to me.  Your not saying it will make a 4lb difference, only that it could be possible depending on the string and the variables of material and make. THe idea of string tension reducing as the bow is being drawn is a totally new concept to me, but I think I get it.  I'm not much of a scientist, in fact it was only a few years ago I finally believed the earth might not be flat!
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 14, 2012, 10:16:00 AM
QuoteOriginally posted by elknutz:
Thanks Rick, I wasn't buying it at first but your explanation certainly makes sense to me.  Your not saying it will make a 4lb difference, only that it could be possible depending on the string and the variables of material and make. THe idea of string tension reducing as the bow is being drawn is a totally new concept to me, but I think I get it.  I'm not much of a scientist, in fact it was only a few years ago I finally believed the earth might not be flat!
Hey Charles.
You're welcome, and thank You,

But Wait !!!!!!!!!!!!!!!

You mean the world isn't flat?
Uh Oh. I may need to reconduct all of my testing, and throw a curvature into the variables for accuracy.   :bigsmyl:
Title: Re: Will restringing change my poundage ?
Post by: LBR on July 14, 2012, 05:39:00 PM
If there is a change in draw weight due only to the string material, then it will happen to every bow, because it's not based on the bow or bow design, but rather the string.

I still say something was overlooked.  3/16 at the tip would equate to considerably more in relation to draw length.  The point I made about dacron keeps getting ignored.  If 14 strands of Dynaflight "stretched" (or retracted)that much at just 68/64# of draw, then the the difference with dacron would be huge.

As I noted before, the best I can get from 10-12 strands of Dynaflight '97 is maybe 1/2"--and that's starting with it off the bow and relaxed.  Not really an accurate guide, as when it's been strung up and settled in you won't get nearly that much, but just for the sake of discussion, we'll say you get a half inch at 300#.  A dacron string under that same 300# is going to give you close to three full inches of stretch--we'll call it two, just to be on the safe side.

So, giving the Dynflight '97 considerably more than you would normally get, and giving the dacron a whole lot less than you would normally get, you still have a difference of 300% more stretch with the dacron.  

If I did my math correctly, that means--if Rick's test was accurate--if you put a dacron string on that same bow, then you would loose a minimum of 16 pounds of draw weight with the dacron string vs. the UC string.  Again, that is being VERY conservative--using accurate numbers, it would be more along the lines of 24 pounds or more.

Ain't happening.  Don't take my word for it, contact your favorite bowyer, or BCY, or Brownell.  Or compare for your self--I will when I get home Monday.  I have a digital scale, and if I can't round up a couple of different strings I'll make them just to compare and post actual numbers.

The main reason I'll bother with it is because I've used and reccomended Dynaflight '97 for years, not to mention used it.  I'm very familiar with the material, and will back it up.
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 14, 2012, 05:59:00 PM
There's one thing you will be missing in your test Chad, and that is how the strings are constructed. Yes construction can make a difference.

I don't use 300# to stretch my strings, and I don't stop at just stretching them. Theres a lot more to it, and their conditioning than a simple stretching.

You can take my word for it, or not. It really doesn't matter, since I know I conducted the tests fairly & accurately.

I also did not knock D97. It's a really good material, but I have found Ultra Cam to be quite a bit better. XS2, and 8190 are also better.
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 14, 2012, 06:15:00 PM
I forgot to say:

Happy Anniversery !!!!!!!

Saw where you posted about it on another thread.
Title: Re: Will restringing change my poundage ?
Post by: eminart on July 14, 2012, 06:50:00 PM
Ok, but if the string shortens because of less stress on drawing, then you draw it more, resulting in more stress again. I don't see how this is possible.

I don't believe these tests are accurate. I may be wrong, but I think something else was going on in your tests.
Title: Re: Will restringing change my poundage ?
Post by: stickum on July 14, 2012, 07:03:00 PM
So this is where the speed difference between a fastflight flemish twist and dacron flemish twist string comes in on the same bow and same brace height?
Title: Re: Will restringing change my poundage ?
Post by: L82HUNT on July 14, 2012, 08:38:00 PM
Made 2 strings last night both to finish at 50" when all was said and done. 1 was a 8 strand UltraCam padded to 16 to give close to same diameter size in the loop area the other 12 strands of B55(Dacron) with no padding.  Both tappered from tip of loop to main string at 6.5."  The UltraCam string had 12 twist in the hole string the B55 11 to get the same length.

Stretched both to 150# and prepped both strings the same.  Then allowed both to set all night and today.
 I just took them and put them on my stretcher with the scale on 1 at a time and took the string to 100# of tension.  The UltraCam went from 50" at rest to 50.25" at 100#
 The B55 went from 50" at rest to 51.3" at 100#.
 
 Like I said on the 3 or 4 post it will be heavier with the high performance string.  I never scaled bows with one or the other but a little more then a inch of stretch difference is pretty big even thou this string had been pre stretched already.
Title: Re: Will restringing change my poundage ?
Post by: LC on July 14, 2012, 10:03:00 PM
Been keeping a eye on this thread for sure! I personally have never seen a poundage increase with a HP (high preformance) string but then again I've never checked that. What I will agree with is that it definately increases the preformance of any bow I've used them on! Faster speed,less hand shock,  weaking of spine of what use to be perfect etc.  BIG time! Now I know that several reputable folks will say my increases are not possible but I've taken a long time with personal experments to prove that they do work FOR ME! I personally think after several years of making and using them that the reason there is so much variation in preformance is that the HP string has to be made the EXACT length with minimal twist to maximise the prefromance. Thus most if not all string makers steer clear and dam them! Just my humble opinion your mileage may vary. It took me "several" tries to make the perfect string for the bows I make I can't imagine producing the perfect string for every bow I've never held or shot!
Title: Re: Will restringing change my poundage ?
Post by: Ric O'Shay on July 14, 2012, 10:29:00 PM
I just read this entire thread. My thoughts on the subject?

I think I'll take two aspirins and go to bed.

   :saywhat:
Title: Re: Will restringing change my poundage ?
Post by: Orion on July 14, 2012, 10:59:00 PM
Lots of folks have measured and reported 5-7 fps increase in arrow speed when switching from dacron to fast flite type strings. If Rick's calculations/tests are inaccurate, what is causing this fps increase?  Rick's tests simply explain why it happens. It is a bit counter intuitive, but it makes sense to me.   :)
Title: Re: Will restringing change my poundage ?
Post by: LBR on July 15, 2012, 01:35:00 AM
He's not comparing dacron to FF.  He's comparing two different FF type materials--Dynaflight '97 and Ultracam.

The test equipment consists of a homemade "hooter shooter", a cottom rope rather than a crank, and a hand-held, spring-loaded "field and stream" scale.  A great effort, but not exactly equipment that can be calibrated for consistency.

The 4# difference in draw weight from just changing strings is what I'm questioning.  The claim is a 14 strand Dynaflight '97 string has so much stretch that the bow looses 4# of draw weight (at full draw) vs. a 9 strand UC string.  Doesn't happen.  If it did, you would loose over over 20# on the same bow with a dacron string.  That point is consistently avoided.  There was obviously something overlooked in the test.  

I wasn't there, so I don't know what it was, but I know this:  4# of draw weight equates to over an inch of draw length, and 14 strands of Dynaflight '97 won't stretch near an inch under 300# of tension--certainly not 60-something pounds.  It's just that simple.

Chad
Title: Re: Will restringing change my poundage ?
Post by: ChuckC on July 15, 2012, 01:36:00 AM
I too am confused.

If there is less string tension when at full draw than at rest, would it make sense that there is also less stretch ?

If string A stretches 3" at rest, and string B stretches .5" at rest, both result in different brace heights, which I will promptly correct to get it back to what I desire.

Would simply increasing the brace height also then add horsepower, no matter the string used ?

Would that same increase in brace height also then result in a shorter power stroke ?

I think I am gonna go back to not worrying about it and just shoot arrows.   It doesn't give me headaches.

ChuckC
Title: Re: Will restringing change my poundage ?
Post by: SaltyDawg on July 15, 2012, 03:28:00 AM
Oh dear lord.

Why did I have to look at this before I went back to bed?   :bigsmyl:  , I knew better than to share such things. They really do fly in the face of the common concepts/beliefs, but I was trying to help. Other than that, NO, I missed nothing.   :)    

Four things you can take to the bank:
1 - the in line stress on the string does decrease as the bow is drawn.
2 - Materials with elasticity will contract/shrink as that stress is relieved.
3 - Materials with different elasticity properties will contract at different speeds.
4 - Materials with the faster contraction will shorten quicker, and bend the limbs more, even though the draw length has not changed.

I'm not as simple minded as you seem to think I am, and consequently was not at all bothered, or insulted by the disagreement until you started making innuendos in that regard. That really did sting a little, and I thought you a better man than that.

All any of this arguing is doing is making us both look childish , and with that said, I'll say one more thing, and then I'm out of it.

Chad Weaver, and Championship Custom Bow Strings produce a fine product.  I've never once said different, and if you care to ask around you'll find I have made that same comment about you as well as some other string builders on countless occasions.

Rick
Title: Re: Will restringing change my poundage ?
Post by: Thumper Dunker on July 15, 2012, 04:13:00 AM
It all makes sence but why worry get the string tune the bow and go hunt somthing.
Title: Re: Will restringing change my poundage ?
Post by: Killdeer on July 15, 2012, 07:40:00 AM
Oops. A rare double post!   :o
Title: Re: Will restringing change my poundage ?
Post by: Killdeer on July 15, 2012, 07:42:00 AM
Thumper, I'm with you.      :bigsmyl:
Title: Re: Will restringing change my poundage ?
Post by: 4runr on July 15, 2012, 08:10:00 AM
And here I thought Traditional Archery was simple  :banghead:    :banghead:    :banghead:    :banghead:    :banghead:    :banghead:    :banghead:    :banghead:
Title: Re: Will restringing change my poundage ?
Post by: LBR on July 15, 2012, 09:41:00 AM
Well, it appears it's getting personal so I'm done.  If anyone wants more input from me on the subject, just pm or call or e-mail.

Chad
Title: Re: Will restringing change my poundage ?
Post by: TxAg on July 15, 2012, 05:42:00 PM
This an interesting thread with lots of good discussion. I appreciate all the efforts to keep us in the know. Until recently, i never realized just how important a good string was.
Title: Re: Will restringing change my poundage ?
Post by: Caughtandhobble on July 15, 2012, 06:18:00 PM
QuoteOriginally posted by Caughtandhobble:
Yes there is a difference is strings...

I do shoot Rick's strings and I had to increase my arrow spine when I started using his strings. I was shooting FF before I started using Rick's strings and the difference was astonishing.

PS... FYI, I do not know Rick, we've never met but he makes a fine string.
I would like to add to my original post...

I just wanted the "gang" to know that Rick and I are not neighbors and that I was not simply giving him a plug in my original post. I truly believe in his strings!!!

Rick has given me very sound advise and helped me with many technical problems that I have stumbled across other than strings in the past year via email.

I can and will stand behind the statement that I made about his strings out performing any string that I've ever shoot by more than a little bit. I have not shot every string makers strings out there and never will. I need not look for a better string. Thanks Rick...
Title: Re: Will restringing change my poundage ?
Post by: moththerlode on July 15, 2012, 07:18:00 PM
Well this could explain why my bows feel a tad light useing Home Depo Bunge cords to save a buck on strings