I'm shooting the NAP Crosfires in 100gr. I like them, but do shoot 4" right at 20 yards. I used to use the NAP Thunderheads and also had to retune the bow every hunting season. I had the best results with the NAP Spitfire mechanicals, just didn't kill anything! Got tired of shooting animals, and never finding them.
I guess I'm getting lazy in my old age. Would like to find a broadhead that shoots where the fieldpoints shoot.