Well I''m fighting the good fight again. I'm almost too embarassed to post this, but my PM won't let me send out.
Trying to get my Patriot to shoot big broadheads accurately is like trying to sqeeze blood from a turnip.

No matter what I try my bow shoot's the arrows tail left. Broadheads group to the right(~6" @ 20 yards).Rest in, rest out, 75 grain tips instead of 100's, not torquing the bow. (Lipstick shows no fletching contact on the rest.)
It's an underspine reaction, but I'm shooting 65# 29" and can't see where
Beman 340's w/100 grain tips could be underspined.
I also have someEaston 400's that tail left also.

Ithink the main problem is my inability to tune the drop zone properly.
I'm to the point ofswitching the DZ to a containment rest(WB) in hopes of calming the arrow down as it leaves.

Any tips I haven't tried?? I'm grabbing at straws here[&o](again)