The kinetic energy the bow is giving won't change between the arrows. If you can live with the level of noise the Beman's give I would go with them. A fixed blade head is still stable and true at the mid 250's for speed. Much more than that and I don't trust the flight that well. I shoot aluminums from my current sixty pound bows but that is because I am getting about 253fps with them. I like the quietness of an aluminum too. I want a quiet setup that gives about 250fps. That is the hunting rig for me.