Where is it written thatall broadheadsshould group exactly with field points? This doesn't make sense to me. You are totally changing the aerodynamic characteristics of your arrow. Of course they are going to be a little different. I've seen testing where a perfectly tuned bow shot out of a machinecan put one broadhead into the field tip hole. Switch broadheads on the same bow / same arrow and you miss by 5 inches. Does this mean the bow is out of tune? No. It just means that broadheadsfly different! Different from each other and different fromfield points. As long as your broadheads shoot tight groups I'd be happy