first thing you need to do is make sure your broadheads and practice heads are the same weight.it sounds like your practice points are heavyer then your hunting heads.even when there the same weight it does not automaticly mean that they will fly the same.you must practice a little with the broadhead your going to hunt with.if after you match weights and they are still off from one another(it won't be much)tune for the broadhead.also make sure your broadhead blade is not hitting the riser when at full draw,this will create problems.also check for fletching clearence at the rest on your hunting arrows,you may have to turn the nock slightly.after practicing with braodheads be sure to replace the blades before going hunting.