What we have found is that the coroplast wings with the sharp leading edges turn on a dime the way they are. This type of airfoil is very sensitive to the neutral setting of the ailerons, which is why we stress the ailerons being set parallel to the fuselage for neutral. If the ailerons droop at all, you begin to have pitch trim problems, as well as tip stall problems in tight turns and loops. My guess (just a guess because I haven't actually tried it) is that if you dial in any "flap" with this airplane, you will cause your plane to snap out of the turns instead of the turns being tighter! But...if you are still willing to try it, I'd love to hear the results!!! I've been wrong before!