We have been playing with Fighter birds a while and what I can say is put 2 or 3 layers of clear packing tape on the rear edge of the wing. We do that even before we fly a new wing.
Also we go to an auto parts store and get these plastic pull ties for attaching transmission coolers and we use them to hold the fuselage together where those little plastic clips hold the styrofoam in the front. It keeps the nose together much better. Just push it right through the styrofoam insert and push the retainer clip on. My plane has taken quite a beating.