I flew mine this morning...I'm normally a "fly low, fly fast, turn left" guy, but going out thermal hunting is pretty fun too. I've had mine for about 5 years now; it's powered by an old OS 15FP, which does fine even at our altitude here (I fly at 5,000'). My original build of the plane came out terribly tail heavy, requiring, if I remember correctly, about 8 ounces of additional nose weight. I moved the servos as far forward as I could, and used a 1/4" plywood spacer behind the motor mount and was able to cut the nose weight in half. If I was doing another build I would add an inch or so onto the fuselage sides in an effort to remove all additional nose weight. We have virtually unlimited airspace where I fly, so the long approaches aren't a problem for me, but if flying in tight spaces, the flap/spoiler idea would probably be a neat option.