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Main Boards => PowWow => Topic started by: Valkyrie on May 05, 2015, 08:42:00 PM

Title: Pick My Spine
Post by: Valkyrie on May 05, 2015, 08:42:00 PM
I have found that I get great flight with Surewood shafts spined at 65-70 and 60-65 with the edge going to the heavier spine.  I am able to predict the shot, feel a better release and observe better flight with both arrow weights.  Now I need to decide which I should go with.  Im leaning to the heavier spine.  The heavier spines are not as sensitive to a bad release or lapse in form

What say you?
Title: Re: Pick My Spine
Post by: Hermon on May 05, 2015, 08:59:00 PM
You seem to have answered your own question.
Title: Re: Pick My Spine
Post by: Sam McMichael on May 05, 2015, 09:11:00 PM
I would go for the heavier arrow.
Title: Re: Pick My Spine
Post by: Bjorn on May 05, 2015, 09:22:00 PM
If the higher spine shoots well opt for it. Tuning is tuning and the point is superior flight. Pick the one that flies best.
Title: Re: Pick My Spine
Post by: Tree Killer on May 05, 2015, 10:01:00 PM
My 60# Blacktail loves 80 lb spined Surewood shafts!  

If you're shooting a recurve you can usually go up in spine.
Title: Re: Pick My Spine
Post by: Fletcher on May 05, 2015, 10:50:00 PM
Have you shot them thru paper or tried an even heavier spine?
Title: Re: Pick My Spine
Post by: Hud on May 06, 2015, 02:55:00 AM
If I recall your earlier post, you where shooting 51#, SK, and drawing it 30 or 31 inches, but you did not mention the point weight. If it were me, because wood shafts are spine on 26" centers, add for:
3 inch, 5#/inch over 28", = 15 lbs
FF string,                   5 lbs
Center shot                  5 lbs
Point Wt., 5#/25gr over 125  5 lbs

Total                       30 lbs

That might suggest 75 - 85 lb spine especially if you are shooting 160 gr field points. Add more if you go with a heavier point or broadhead. Next put some medium wt. kraft paper on a box frame (wood or cardboard) to paper test. Elite Arrows tells you how on their website.
Title: Re: Pick My Spine
Post by: Valkyrie on May 06, 2015, 07:23:00 AM
QuoteOriginally posted by Hud:
If I recall your earlier post, you where shooting 51#, SK, and drawing it 30 or 31 inches, but you did not mention the point weight. If it were me, because wood shafts are spine on 26" centers, add for:
3 inch, 5#/inch over 28", = 15 lbs
FF string,                   5 lbs
Center shot                  5 lbs
Point Wt., 5#/25gr over 125  5 lbs

Total                       30 lbs

That might suggest 75 - 85 lb spine especially if you are shooting 160 gr field points. Add more if you go with a heavier point or broadhead. Next put some medium wt. kraft paper on a box frame (wood or cardboard) to paper test. Elite Arrows tells you how on their website.
Hud,  I was able to do a paper test and they show a left tear about 1/2-1".  Im using 125 field points.  I thought of two options, either trim an inch from the arrow which will give me half an inch at the front of the arrow shelf and lower the brace height a little or go to the next spine up.  I want a heavier weight arrow so trimming it shorter isnt my first choice.  Probably go with 70-75 spine and call it good.  I am really excited that I am able to get arrows to actually fly naturally to my point of aim.

ETA:  I tried cutting an inch and with my long draw it just won't work.  It brings the point slightly on to the shelf and I don't want that small of a clearance.