That is a great plane. I did my first (only) 500 point competition pattern with one built by Andy Borgogna. He has since given it to me. His was covered with Polyspan and painted all over with Painters' Choice rattlecan. A bit on the heavy side, but can turn a nice pattern.

In the meantime, I am building a new one that should come out lighter than Andy's.  I will be covering the wing and tail with Coverlite, and the fuselage is stiffened with .2 oz. carbon veil after some serious tapering of the aft end and rounding of the contours.

First hint of the day: Cut a trim tab of about 2" length out of the end of the inboard flap and make it adjustable but fixed. This cures the wing whip in hard maneuvers.

Second hint: The battery needs to mount underneath the outboard wing, not on the upper fuselage. Until I made this mod, I could never get the wings level.

Third hint: Put in the weight box "just in case", but it will probably never need any weight in it.