I am not familiar with the Rage,it sounds like that it is likely a short brace height speed burner,even if that is true with the arrow weight you are shooting you are not likely to be close to 300 fps.Thearchers looking to get the most speed outof their (usually 3d set ups)sometimes take their arrow weight down to 5 grains of arrow weight per pound of draw weight,I believe that is the IBO legal minimum.With arrows that light thelimbs are taking a lot more punishment.