RE: Mechanical Broadheads vs Fixed - Which one's Point of Contact is Closest to Field Tips ???
I have used both the Rocky Mtn. snyper and the spitfires with good success. HOWEVER, does your set-up have enough energy to have good penetration with them? And is your bow in tune? Is there an under lying reason that you can't get fixed heads to hit the same POI as your practice points? Have you checked and double checked every thing with your bow and arrows to insure that there is not anything out of whack? If your arrows aren't flying well, mechs. aren't going to penetrate as well as they should!
Did you paper tune, at least, to insure that your arrows aren't fish tailing off the bow?