I have been trying to cover the wing of my P51, and the wing warps as soon as the covering shrinks, it even crushes and cracks the balsa. I am thinking it is because I am completely wrapping the wing, due to the fact that the solite only likes sticking to itself. I am somewhat unsure of this solite. I like the weight, but I find it doesn't adhere to a flat surface of balsa, so when I cut out the retract area, the solite pulled back and it doesn't want to stick on. Any heat seems to make the solite curl, but I can't get it to stay down. Would going to ultracote be better?