RE: Extra 260 Crashed
I agree just try to maximize the area on your Glue joints by cutting angles on parts you glue together instead of just gluing the stringers square to each other.
A few trusses(angled blocks of wood glued in a corner) will work to strengthen that area behind the wing.
When looking at the parts before you glue them.... Think of the forces they might have on them when you fly with your style of kicking the sticks around.
I agree... It's repairable! Go for it and update this link with good pix of the come back kid in flight!!!!!