Main wing fillet.
The plans have a 1/32" ply for the bottom of the fillet that contacts the wing. I've always had trouble getting the ply to lay flat on the wing due to stress from the fuse pushing on the ply. This time, I cut some 1/64" thick ply by 1/2" wide and stuck it under the original ply and taped it to the wing: There is no stress on the 1/64" thick ply so it lays nice and flat along the wing.
I used some thick CA to secure the 1/64" thick ply to the 1/32" thick ply. Some thick CA was also applied along the fuse sheeting where it contacts the 1/32" thick ply.
Some triangle stock was then thick CA'ed to the inside corner of the fuse to ply fillet.
Finally, some easy sand was applied to smooth over the fillet.
Some more work needs to be done but this gave a nice smooth transition from the fillet to the wing without any large gaps.