ORIGINAL: ejam

Zor,
F4 is the front piece that makes the windshield. <span style="color: #ff0000">You may be talking about where the fuse starts to taper in running towards the rear?</span> If so, there are doublers on each side. and at the point where the fuse sides begin to taper, the doublers have small cuts to be bent. The directions are a little unclear as what to do. I states to cut into the part at the dashed line, and glue. But what I did was left it unglued till the fuse was done, and then glued them( the small cut off part) in.
When I finish the wing covering, I will take a picture of the doublers to help explain.

Quigleywins, I am covering the wing with solite from mountain models. This film is very light, and took me some time to learn how to work with it. I have found that using low heat to make the glue stick to frame, then turn up heat and shrink. It does have a lower heat rang than other coverings, so you do have to be carefull when using it.