deercutter, typically if your field points get bent a little or aren' t spinning quite true, it won' t affect your arrow flight much. The main reason that broadheads need to spin true is that they will plan, or try to steer the arrow off target if they are slightly out of wack, especailly fixed broadheads. The larger cutting fixed heads are the worst where as mech. heads won' t try to steer the arrow as much.