Andrew,
Excellent posts.
Interestingly enough, the 3 shafts that I have found to have the most consistent spine yielded your best group both in a machine and with hand shooting.
Curious, did any of the hand shot shafts show a larger than normal increase in group size? (e.g..you got 1" groups at 40 with ACC's on the Hooter. Say your hand shot groups were 4 times as big (4"
. Did some shafts show a larger increase when handshot (say 5 or 6 times the hooter shooter shot group?)
I too am puzzled as to how these shafts which seem weak, are shooting so well out of your set-up. It could be a bazillion things really.. Is your Vortec a Verscam model? XT limbs? 2000 or 3000 limbs? Do you have the Versacam adjusted near the shortest draw length setting or the longest?
At any rate, I think that is very good example of why I prefer and promote ACC shafts for best accuracy.
Thanx so much for all your hard work!
JeffB <img src=icon_smile_big.gif border=0 align=middle>