I have always been a great lover of rockets and splitfires for 4 years, however I recently switched over to "THE REVOLUTION" by rocky mtn. These broadheads dont fold the blades back on impact like the rockets etc, they push a ferrule back that slides the blades open, you get a bigger inlet hole and a big outlet hole. You also dont have to worry about deflection on a quartered shot.However dont get me wrong there is nothing wrong with rockets or splitfires, the have made me a very happy person on several occasions.