Just a final comment, then I'm off this thread...

If you wanted help, then why do you get so damn temperamental when anyone suggests that your form may be erred??

Sorry, but with what you've stated, form inconsistency is the only answer that makes sense.

YOU eliminated arrow/BH/insert combinations yourself...sometimes the combination flies well, sometimes not.

YOU & YOUR PRO SHOP eliminated anything wrong with your bow.

That only leaves 2 things---your release and your form.

You shoot fieldpoints with no problems, so that eliminates your release.

To give you a personal example---I could shoot 2 inch groups at 20 yards, but was canting the bow to the left. It didn't produce any appreciable torque, but the string was smacking me square in the left forearm. With broadheads, my groups spread to 8 inches. A little self-diagnosis and I proceeded to fix the problem (which was my grip)---which eliminated the repeated form problem.

However, now if I revert back to that grip after shooting 40 arrows (which can happen due to lack of concentration), the same problem resurfaces, and is random.

Same thing can happen if you look up from your sight at the target JUST before you release--for me this always results in a low hit. For other guys, they may miss right/left etc., you get the idea. But it is still a random form problem, not mechanical.

As silentassasin stated, form problems don't have to be repeated, they can be random. Most are repeatable and easy to change---it is the random form problems that are hard to correct because it's hard to notice something that happens every 5th shot.

I'm not being a jerk, but god man go back over what you wrote and read it from an objective point of view.

I'm still wondering why & how your so convinced it's not form when you know the arrows can fly well for 20 shots and then something mysteriously "bad" happens to arrow flight.

Good luck,

Hope the new broadheads work. With that set-up you may want to try mechanicals, they fly more like fieldtips to begin with---email 5shot, he has some great info on mechanicals and their performance.