Serge,
Two ply ribs on each side of fuselage in the wing center section for sandings guides, one very close inboard and the other near the outboard end, work very well. I used a ply rib on each end of the outboard wing assembly as sanding guides and cut holes in the inboard rib center piece to lighten. Makes building wings to plan a piece of cake. When sanded and glassed, I filled the gap between outer wing panel and center section with foam, sanded to shape, then cut with a Dremel tool to seprate. That leaves a very small opening to cover. I enlarged the openings at the wing attach fittings for access. Hint: sand and glass the center section all the way to the fuselage before building the faring. Sure makes the job easier as you have hard points to fare to. Larry Flesner
