First you want to make sure your heads are matched to your arrows so if you spin test them no wobble at all. Sometimes this is tough. I actually have seen only 4 usable arrows in a dozen carbons once from Beman. Rest wobbled the BH. Seen BH's that wobbled on any arrow. Find a good match.

Once you have a straight setup, shoot a group of broadheads, and then shoot a group of fieldtips same wight. First fix you vertical problems first by adjusting nock position or rest, check out the guide. Then if your grouping the BH's to the left, raise the poundage on your bow, or use heavier BH. BH to the right of feild tips, lower the poundage decrease tip wieght. This all assumes your papertuned to bullet holes.

I like to BH tune all the way out to 40 yards.