RE: Wierd broadhead tuning problem
I think your problem is torquing the bow. Had the same problem and I tried everything I could think of. Finally figured it out. I was trying to group my broadheads to make sure my sight pins were on and couldn' t shoot groups. Harder I tried, the worse the inconsistancy got. Longer I shot, the worse it got. Did the same thing 3 days in a row. Practiced drawing in a mirror and saw it immeditely, I was bending my wrist, causing me to torque the bow. Probably started doing it when I shot so long in the preceeding days and just developed the habit. Crazy stuff this archery......especially when it plays with the mind.
Anyway, when you get tired of moving all your stuff around, take a critical look at your form.