Ron, how many hrs on boat this year?I've epoxy primed and bottom painting the rudder in the past.
Some years it makes no difference.
This year it was on the skeg over bottom paint also.
Warmer water temps or something in the water, less use of the boat than normal ?
One year, with bottom paint whole port side of rudder was covered, stb clean.
Boat took it's own turns to port when I let go of the wheel at the end of the season.
Port side faced the sun everyday where I tied up.
Was better on mussel growth this year but worst on baracles. I think a lot had to do with the "green" water in the harbor all year due to the sewage leak. i have an outdrive and have to clean it once a month at a minimum, otherwise i think it would be inoperable by fall. It seems like there are different time periods that different organisms "set" on the gear. If you can clean it during that 2 weeks period, saves a lot of work (june on mussles, july on baracles). a $200 lift and powerwash is a pretty good investment. i spend my weekends under the boat cleaning with mask and fins while the kids swim at san dollar cove. just make sure you have a wetsuit, as the amount of sea lice that come off can be staggering in august.