Interesting thought Rack Attack, I just dumped my Gold Tip nocks a week ago and replaced them as well, the original ones would hold on like a visegrip.

BigBulls, I too shoot a similar setup as yours, including same rest and arrows, 7595, maybe your and my problem was as something as simple as the nock, now I wish I would have at least tried that change before I got rid of them. I do think after changing the nocks I was able to tighten my groups. What the heck give it a shot. Good Luck. elknut1