After mating the deck and hull on my Petrel, I decided to put another layer of glass on the hull and lapped over the seam about 2 inches. I used masking tape as a guide, and while the glass was still soft, I used a shrp blade and cut the glass along the tape. I did two fill coats but stayed away from the edge. I sanded the glass edge to a feather edge, along with the sanding the deck, and put on what I was hoping was a final fill coat. The edge is very obvious, as a silver dotted line, looking like the fibers running lenght wise are showing. I hand sanded the edge again along six feet or so, concentrating on that fine edge, thought I had the second layer sanded down, but not through the first layer, applied some epoxy, and it still shows. Any tricks to make it go away. In the past, I have not trimmed the edge, let it run long, then sanded, and the overlap went away.