Well after a day at the boat the list gets longer, not shorter. Took a good long look at the prop and it has serious pitting. Some green oxide, but not much. The shaft is fine, but the packing nut is a beautiful color of green. We are on a mooring and always leave the battery switches to off. (only thing with power is the bilge pump). No one in the area has a problem with corrosion. I assume its corrosion, am I right. Anone put a fancy new folding prop on a 376 and looking to sell their standard 2 blade? Russell S/V Allie Kat