I think what flypaper means is that you glue down the fiberglass down with 15 or 30 minute thinned epoxy. I have planes made from plans that have no dihedral brace between the 2 wing halves. They are just glued together at the centre and the gap is filled in with epoxy. Then the fiberglass is added from 4 to 6" wide depending on the model. The fiberglass is where the wing joint gets its strengh from. [8D]