Yep,
I'm always stuck between carbon spines. And haven't been able to get exactly what I want in tune and arrow weight for a long time. So that makes for a lot of testing and buying of shafts. Been on the verge of perfect arrow flight the last 2 weeks with some new GT .340s and the longer 50 grain aluminum adapters. Actually I thought I did have it perfect. Then it cooled off about 35 degrees and suddenly they show a little weak? What the hell! Thinking about cutting some off this evening.
It's a fine line these carbons! Tweaking arrow length, the nock height, brace, how deep to hook, how tight should the nock fit the string...etc.
Tedd