Right on the button! I have done this to a number of trainer style planes. Make the ailerons and flaps about 50% larger in chord, and make the flaps about 30% of the wing half. It's a blast to have this on a plane, and really helps with float planes. For short take-offs I use 15-20 degrees with 30 for landings. There will be a MAJOR trim change with the flaps down so be prepared, if your using a computer radio you can mix the change with the flaps. Have fun