I am probably not as "technically sound" on this is some of the guys that have already posted to you, but I would guess that because your errant shots are not consistant in one direction or the other, it points even more to a less than perfect release or form. Don't get me wrong, I am not (and I don't think anyone else is either) putting you down in any way. I have always shot either Muzzy or Thunderhead, and I notice with myself that if I jerk the trigger or torque the bow even slightly while shooting my broadheads, the amount the shot will be off is double or triple that if I were shooting field tips. I don't know, tough situation to figure out. Have you marked the arrows when you get a flyer to see if it happens to be the same one or two arrows doing it? I had a similar problem last year and ended up taking a marker with me, and every time an arrow didn't group with the others (and I felt I had a good release) I would put a mark on the arrow. Might be worth a try.

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