1. In an effort to create a perfect edge against the glass on the windshield fairing, I mixed up some SuperFil, then dyed it black. I applied this with a small metal spatula in the thin gap between the fairing and the electrical tape. In addition to being a good feathering edge, this filler should take care of the four or five areas where the edge of the carbon fiber layer was chipped because of the sanding I've been doing.
2. I waited about 50 minutes for the filler to begin setting, then pulled off the electrical tape. The resulting edge looks really nice. Tomorrow we'll see how well it can be sanded to a perfect feathered edge.