ok, not exactly cg, but close... couple years ago I saw a show on discovery that showed a guy who converted a small 2 seater to have a pivoting wing. basically instead of a normal wing like planes usually run, this one was only attached at 1 pivot point at the center of lift. supposidly it was impossible to stall since the front of the wing would dip if it encountered a stall... anyone up for incorporating that into rc?