Time to get serious about finishing the fiberglass windshield retainer. The first photo shows the first rough cut along the top and bottom edges with the Dremel metal cutter wheel, which goes through the fiberglass very fast. Too fast. (At this point all work on the retainer is nerve wracking -- because it would be very difficult to build another one at all, much less to fit the existing rivet hole pattern already drilled in the top of the fuselage.) All the retainer's rivet holes have been cleared out by back drilling through the filler from the backside using special plexiglass/plastic drill bits. The edge lines need to be cut and sanded down quite a bit more -- the whole thing will be narrower when done -- but the second photo shows an interim test fit back on the plane, and it's starting to look very nice indeed.