I have an older wersion of Easton's tuning guide. The info you seek is at the bottom of page 7.. My bad. What I also want to add is that maybe it's me, but every time I get a bare shaft planing to the right it's because the arrow is too stiff. I have that indication right now with my updated FireCat, shooting 27" GT-UL500 at 45#. Most charts say I should be shooting nearly a 700 spine and a 500 and even 560 spine plane to the right, just opposite of conventional wisdom.
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