I called rage broadheads in september because my wife shoots 47 pounds and I asked them the minimum draw weight needed to shoot the rage and they told me they open up even at 30#. My wife has yet to shoot them just because I have 2 blade magnus right now. I dont know about 30# seems low to me but at 40# I could see them opening just because they open so easy. 1 lung and a 2" hole is better than 1 lung and a 1 1/4" hole. Good luck!!!!