I got these two years ago, i personally love them with a biscut... I group a 1 inch hole at 20 yards no problem.
with that being said when i move to 40 and farther with a broadhead I sometimes get "tail whips" and the arrow penetrates a right to left angle (about 20 degrees). (still a good group 3-5 in, just "cock eyed" hits)
I am a right handed shooter shooting carbon express arrows, 100 gr tips, out of my 60lb hoyt alpha max.
is it the helical twist rate slowing to greatly?
i don't think its me with "off" shots i am relatively consistent, but i just cant be certain.
i want to try to figure this out this summer... so any help would be appreciated.