Tinman, the clipped Cub is capable of amazing aerobatics when set-up with the CG about 1/2" behind the recommended point. I love to annoy the traditionalists at our club by torque rolling my Sig 1/4 Cub. Like most high wing planes, it has a lot of roll coupling when rudder is applied, but mix it out (about 50% oppposite aileron), and it knife edges great. All that fuselage side area really provides plenty of lift.

On a cool, dry day when the Saito is really humming I can even manage a crude looking knife edge loop!

How long did it take you to build your Cub? It took me almost 3 years (!) to build mine, 'cause I kept putting it aside to work on other other projects. Finally finished it last October and have about 40 flights on it.