Martin,

 

The bolts on Busca had been “stretched” a bit by groundings and there was some leakage there.  On her, a 1987 model, I found fiberglass, then a chunk of wood (mahogany, I’m guessing) then more glass.  I drilled the hole out oversize, epoxied it, and then redrilled so that the wood was encapsulated.  The transom gudgeon was then re-installed with liberal (copious?) quantities of caulk.  Can’t recall what I used, probably 5200.

 

Busca was once rear-ended and came away with only a minor gelcoat divot.  The car on the other hand had a LONG DEEP crease down it’s hood.