Jacs,
Measure back 1 1/4" from the front edge of the fillet base.This is where WF1 gets glued. WF2 lines up with former F3 and WF3 gets lined up with former F4. WF1-3 get glued to the fillet base and the side of the fuse. They should force the fillet base to lay flat against the wing. The wing should be attached to the fuse when you are gluing them on. There is a lite ply wing fillet part that gets glued to the back edge of the fillet base. This piece gets glued to the back edge of the fillet base and the stringer that lines up off the back of it. After WF1-3 and the trailing wing fillet part is glued in place, you need to glue a 1/32" lite ply strip to the side of the fuse. It starts at the top of WF2, runs down to the top of WF3, and ends at the back edge of the trailing wing fillet part. You then need to sheet the wing fillet in 3 pieces. Start at the front and sheet between WF1 and WF2. The sheet gets glued to the fuse, follows the contour of the former, and finishes at the edge of the fillet base. The sheet should only be glued to the front half of WF2. The second sheet starts at the back half of WF2 and goes to the front half of WF3. It gets glued to the lite ply strip that runs between WF2 and WF3, runs down the contour of the formers, and finishes at the edge of the fillet base. The third sheet starts at the back half of WF3 and goes to the end of the trailing wing fillet part. It gets glued to the lite ply strip that runs between WF3 and the end of the trailing fillet part, runs down the contour of the former, and gets glued to the curved edge of the trailing fillet part. You need to wet the sheeting so that it doesn't crack when you form it to the contour of the formers.
Mike