The wing to fuse fit is fine around top of the wing. Some small gaps just forward of spar. Probably about 1/16". This was easily overcome with the microballon-epoxy filler. The trailing edge of the wing fits with just a small gap at the fuse. But plans are for a straight section across the fuse at the trailing edge but the wing is tapered so a gap exists. This is really just preference for me to have this filled in. BUT, it should be a smooth transition from bottom of the wing at the trailing edge to the bottom of fuse. I had to add about 3/16" of balsa to the fuse to get it smooth from bottom of wing to bottom of fuse. It is like the entire wing should move up 3/16" towards top of fuse. Remember the Robart incidence meter showed on spec incidence all round.

Here is a couple pictures to show the problem.