I have a 62" 60# PSE Heritage Raven recurve. It stacks really badly in about the last inch of my 29" draw. Up to that it is very smooth.
The brace is currently 8".
I have been thinking that if I get a longer string that drops the brace down to about 7" it might eliminate the stack?
Any opinions on this would be appreciated.
As it is currently I just don't use it because it ruins my form.
Thanks
A shorter brace height doesn't change the fact that you're drawing 29". The stacking is a function of the limb design, not the string.
Dropping an inch on brace, I would think would, ruin all your bow tuning.
Try it and see a longer string would keep the limbs from moving as far
the way i understand it is that stack is all about string angle. Dropping the brace height by 1 inch probably wont change the string angle at full draw that significantly. The bow will store more energy and have increased cast at the expense of likelyhood of string slap to the shooter. This is just physics.
You may want to put it on a tiller tree and look at the string angle at the draw length you are concerned with. You could also use a scale to measure draw weight increase per inch to confirm what you are perceiving as stack.
You'll probably need a custom string to drop the brace height that significantly also.
I'm not saying don't try it, just that i don't think you will achieve your desired result.
If you do try it let us know your observations.
Are you sure the bow isn't too heavy for you. If it is 60#@28" you can add another 2# to 4# for that extra inch.
Like said above stacking is the result of string/tip angle trying to get beyond 90 deg. You can check it by checking the string angle at full draw or by checking draw weight(force/ draw curve) If you get a spike in draw weight after 28"(more that 2# to 4# per inch) then it is stacking.
Untwist the string a little and see if the stacking drops, But be careful not to untwist to much. You could also untwist the lower limbs loop and tie a bowyers knot. That will save some money and time to see if longer string will help.
My gut reaction is: no. I had a 52" Herter's recurve once. It stacked like crazy from about 26" to my 28" draw. I made a longer string and saw no appreciable difference. Someone else is enjoying the bow now. :rolleyes: That worked the best for me. ;)
Can't hurt to try and it'll only cost you the price of a new string. My guess is if a 62" bow is stacking at 29"; there won't be much you can do about it though but get another bow or learn to live with it. I have a 52" Red Wing I bought in 1969 that stacks like a deck of cards at my 29" draw, but it's quick, handy in thick brush and shoots well for me even though it's uncomfortable and I end up short drawing it. Too much history to sell it.
It's the force/draw curve that comes with the design of your limbs so no, it won't help. You curve is very steep after you cross 28" and nothing can change that. You need limbs that have a more gentle curve.
Yes, a longer string will keep the limbs from bending as far at your draw, thus reducing or eliminating stack at your draw.
Untwisting your string does the same thing. The downside is you are lowering your brace hieght, thus throwing your tuning off if it's tuned to previous brace.
The shorter string will reduce stacking if not eliminating it completely if only drawing an extra inch. You might have to play with your arrow set-up (tuning) but once you have good arrow flight you should have better performance from your bow also.
James................
Bend your bow arm a little, a longer string will probably make it loud and shoot like crap.JMHO
Thanks for the replies guys.
Untwisting is not really an option as it has a parallel strand string and its as long as it goes.
As some suggested I will try a new string and see the result.
I mostly shoot with a 56" 55# Red Wing Hunter which surprisingly does not stack at 29"
I will let you know the results :)
Hey if worst comes to worst a new bow is never a bad thing ;)