ORIGINAL: OHbowhntr
I'd always lean a touch toward overspine vs. underspine, esp. if you've considered upping poundage any at all. Theoretically, underspine equals more wobble which should result in poorer arrow flight, and more inconsistency. But the NUMBER 1 reason I won't shoot underspined is.....
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holly crap!!! that sux....
u guys talk about getting to the "ideal spine" .... what is the simpiliest calculation to get that??
i mean, if you know draw length and draw weight how do you calculate the "ideal or perfect" spine on that arrow