My bow always does that with broadheads, so I adjust my pins and everything works fine. They always shoot down and tot he left, even though they are the same weight as my field points. Its a pain in the ass, but I can sit out at 60 yards or so and put 5 in the bullseye about the size of a tennis ball, so I feel tuning isn't probably that neccessary. COurse now I shoot a Trad bow for the most part and thats a different story.