I spoke to Vince in the morning, and it seems that the rear cylinder seized on the Flightstar. He's suggested that I try and find the gubbins to convert the engine from free-air to fan cooling, so I'll add that to my list of things to do. I can't find anybody who has the parts we need for the fix for the piston yet, but I'll keep trying :o( Of course, anybody who's anybody's at Oshkosh this week, and that's slowing everything down.
There was a request in the suggestions box for a brighter light over the shower in the bathroom. I've had a 60W incandescent, 14W fluorescent and (currently) 6W LED bulb in the housing, so I've decided that the housing is the problem. In the evening, I installed a 9W LED fixture that's so bright I can see smudges and thin bits in the paint on the opposite wall. And a ghost image of the fixture in the eyes for about 10 minutes after looking at it.