I use nap spitfire's. They really do fly like practice points. I shoot @ 73 pounds, and have yet to have one prematurely open. My archery pro chop suggests useing fixed points for anyone shooting over 30 yards, but mechanicals, in my opinion, have a much more devistating effect. A new study has confirmed that mechanicals only lose 3 to 4 percent more than fixed.(bowhunter mag.)