yeah, its a good one alright. Knife edge is wonderful! I like doing a low knife edge pass, then add more rudder for a half K.E. loop, then at the top feed in top rudder for another pass and half K.E loop. It makes kind of a Knife edge "S" I've found the plane to be really strong, too. I've had some engine trouble and had to land in a plowed field twice! Both times it flipped over. The only damage was the first time a couple of rudder hinges pulled out. I just put my wheel pants on last weekend. They sure make it look cool!