Does anyone have any experience with a Cox Mantis?

I flew it today! It was my first time flying a glow plane in over three years. The plane flew very well. It is definitely a trainer type of plane but it will loop and roll and stay inverted for a few seconds. I was flying in a rather stiff breeze and was amused watching the plane go backwards as it climbed. The .049 medallion was plenty of power. Unfortunately, the throttle that worked so beautifully on the bench was a huge disappointment in the air. I think I am going to remove the throttle and install a pressure tapped back plate to assure positive fuel delivery throughout the flight. This will require me to mount the engine on a beam mount but between that and removing the throttle servo I may be able to remove a little nose weight. Over all, I think this is a great little plane.