Re: Winch covers?
One of the things I like about the winch hats is that they cover the top of the winch so hopefully preventing much of that bleaching problem you mention Minnie. Otoh, because they only cover the top you can still leave lines in place.
I pulled down and serviced our primaries a few weeks back after three years use. (Yes I meant to do it a year earlier but but but). While they need a bit of grease and oil they were surprisingly clean inside.
Huzzah for the winch hats ? Maybe though out side curtains do cover the winches when we are not on board. Even so I'm sure they didn't hurt.