Hi Guys, I've been flying and enjoying my Big Boy for a couple of months. I love this plane. I put a Sig First Place 1.3 in mine (not my first choice, picked up this engine at a very good price). The First Place engine flys the plane pretty good, although it won't quite hover. This plane is the worlds biggest park flyer. I too put my rudder and elevator servo's in the back. I used conventional control arms(not pull-pull). I easily get 20 minute+ flight times on this engine. I wanted a Big, easy to fly, sport-aerobatic plane and the Big Boy is perfect. With more power, I'm sure it would easily do a lot of 3D stuff.