I've come to the cocclusion that most of the proshop bow techs around here have about as much sense as a fence post..The last one I talked to tried to tell me a straight fletch arrow will fly better than any helical fletch..he also said My broadheads were way to heavy for elk..I shoot thunderheads 125's right now..Any way he thought I needed to buy some 85's....I told him to run one of those 85 grain satelite heads right up his ass and tell me where the blood trail leads..I do all my work myself..this way if something goes wrong,I know who to blame..good luck to all this hunting season..It cant come soon enough.