I installed the flaps, I'd recommend it. With flaps, you can do kite hovering into the wind, which helps you practice stick and airplane control/reflexes...or just use them as normal for landing...and they can be used on takeoff for short field takeoff and crosswind days, to takeoff into the wind across the runway. The plane can do a lot of things, aerobatics, hovering, etc...not good with the knife edge though, no fuselage...