I have a couple.........

I used the Swany method for stiffness....CF Tube down the fuse.....and also in the wing.

It's also important to use Bi-directional tape, with #M-77 Spray glue, down both sides of the fuse, and for all the control surfaces. Don't use CA hinges...they won't hold in the foam!!

Put some Bi-Di along the bottom of the fuse, if you don't use landing gear.

The bird is ready to fly, with an AX 55 at 3lbs. 4oz!!!!

Enjoy