That would be me Fstbttms (no commercial dive services on our island). I dive it once a year to replace the zincs and scrub the parts of the hull that the long brush doesn't reach. The PO had filled the crevice with some kind of filler so it wasn't until it was hauled that we could see the rust stains and investigate.
SV Laurie Anne
1988 Brewer 40 Pilothouse