Mine had/has a small gap also. As long as the little dow rod fits into the wigs so it will not rotate on the tube you should be fine. If it really bothers you, take the covering off the inside, and sand it flat. Glue a long piece of sand paper to a flat surface and flatten the warp. But like I said, 1/16 will not effect the flight. And as long as you dont point it out to anybody, (like the old cranks at the field ) no one will ever notice.

I ripped my first set of wings off of mine by flying into a tree, fuse was perfect, just had to re-glue landing gear block back on. Someone from here sent me there old SE wings. I put them on, and had about a 1/8 gap at the LEAST. It flys great.