Zagi Help......
I have heard of someone gluing some balsa on the trailing edge and using ca hinges but I am not sure what glue they used to glue to the foam or how long the foam would hold up.
I did the tape and used the stock balsa parts with packing tape over them. I have had several hard crashes and saved my servos by having the balsa bend or crack instead of having the servo break. Like a built in servo saver. If you use corplast, yea it is tougher but then your servos take the beating. I did use corplast for the wingtips. I also made them bigger and hand 1/3 of them under the wing. It seems to help in turns.
P.S.
Nice job on your Zagi!
Bill