The Jug benefits from swinging a little bit longer piece of wood. The Norvels like 9 inch props but the FX will swing a 10. Little more umph in the launch and acceleration game. Once in the air, I was looping and combating with a failing Norvel giving just over 1/4 throttle no problems looping, shucking and jiving, just no high end speed. That big old wing with a ton of area really comes in handy.