Lots of sanding on the windshield retainer today. First, an hour or so of sanding to clean up the fiberglass itself. Then another hour drawing bigger darker trim lines. A first application of fiberglass impregnated body filler went next. (Because I have a rather hefty rubber channel on the bottom of the windshield, some considerable fairing work is needed to smooth out the rubber channel's bump in the fiberglass.) After that cured, about two hours of hand sanding, then another smaller coat of the same filler... which is curing now. I expect it will take two more applications of lightweight top coat filler to get it done right, so three more sandings, starting tomorrow. For now, just tired shoulders.