VA, if you want to get away with shooting broadheads from an untuned bow you will need to use a low profile head like a Slick Trick or the newer Muzzy MX series. This is why mechanicals are so popular. Ifthe bow is not tuned properly the arrow comes out ofthe bow crooked and that is when the blades catch most of the air and it planes. If you tune the bow and get it shooting straight right from the beginning you will reduce the variation you are seeing between the field points and the broad head.