| From: Okiecntry
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| Date: 09-Aug-22 |
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Same bow, same draw length, same arrows and points - what type of shooting form difference(s) make you need a weeker or stiffer spine? I ask because I sold a 45# Bob Lee recurve to a friend and we both draw around 28". I shot 500 spine arrows out of it good and he says he needs 340 spine.
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| From: Rick Barbee
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| Date: 09-Aug-22 |
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Grip position in hand, quality of loose/release, and attention to tuning.
Rick
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| From: Buglmin
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| Date: 09-Aug-22 |
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Rick nailed it. Grip is a huge factor in spine. Even Tom Clum wrote about grip and the need of stiffer spined shafts.
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| From: Viper
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| Date: 09-Aug-22 |
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Okie -
Differences in release and or bow torque can, but don't confuse spine requirements with shooting flaws that give false readings. If your friend needs a 340 spine from a 45# bow, those arrows had better be very long, have a lot of head weight, or both, or more likely he's getting a false reading.
Viper out.
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| From: Okiecntry
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| Date: 09-Aug-22 |
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So, do you think my grip is causing me to need below average spine or is his grip causing the need for above average spine? Or a little of both?
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| From: Mechanic
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| Date: 09-Aug-22 |
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Give him a bare shaft in 340 and first shot will settle differences really quickly. I bet you 340 is way too stiff for that weight/draw.
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| From: Pa Steve
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| Date: 09-Aug-22 |
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So how does it differ with different grips? Just curious. I seem to always need an arrow a little weaker than a spine calculator dictates.
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| From: Okiecntry
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| Date: 09-Aug-22 |
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A lot of responses at once but I think my question above was answered as I was thinking 340 was way too stiff. However, like PA Steve I tend to do best with weeker spine than what the charts call for.
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| From: Okiecntry
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| Date: 09-Aug-22 |
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What type of grip or shooting flaw would cause him to need more spine?
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| From: Pa Steve
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| Date: 09-Aug-22 |
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Sorry Okie, wasn't trying to hijack thread just figured if someone could answer my question it would be relevant to your initial inquiry.
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| From: Okiecntry
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| Date: 09-Aug-22 |
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No problem Steve, I took it as along the same line. Of course I think my friend must be doing something wrong. LOL But anymore I don't even bother looking at the charts.
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| From: Jack Whitmrie jr
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| Date: 09-Aug-22 |
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Not sure but with a 45# bow I need a heavy head and a 500 spine with a 29" arrow.
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| From: fdp
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| Date: 09-Aug-22 |
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A .340 is statically the equivalent of a 92lb. wood shaft. So there is that.
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