I don't have one, but two guys in my club do. One has a Brison 3.2, the other is radical with a 3W75. The Brison seems to be perfect, the 3W75 looks like a F-15 on a functional test flight. Straight up until out of sight, then flat spins back down. I won't tell you his IQ, but he is a good pilot. Both planes fly great. I flew the one with the Brison, it is wonderful. The one with the 3W lost one of his horizontal stabs in flight, but the plane still had plenty of elevator for a gentle landing. He reinstalled the stab with new screws, and was back in the air in 15 minutes. Take a word of advice, put tape over the stab screws.