I saw these heads at a large bow fair yesterday and I believe that they will be the best flying, toughest, best penetrating heads on the market. That being said, I think Rocket blew it big time with these heads - the cutting diameter is just too darn small for my tastes. Especially with 3 blades. Nobody else seemed real impressed with them either - I didn't see anyone buy any. If Rocket could just figure out how to make them with 4 blades and a 1" diameter, I think they would have something.