Personal preferance really. (that is the definitave answer)
1. The paint wears out to quick even if coated properly, ie epoxy metal primer followed by antifoul wet on wet.
2. Hihgly polished should be fine, could always require a quick scrub between lifts.
3. Henleys propellor oil, to slippery for growth to adhere to properly.
Over here in Auckland just about every boat in the yard (power and sail) had propspeed slapped on before going back in. Apparently fab stuff with many repeat customers, seemed worth a try - it's my first season but so far looks great. Seems to need professional application rather than DIY but that might just be the setup here in NZ. Here's the website - a bit cheesy but the product is very real and seriously in use amongst kiwis. No idea if it's in the UK - ask around.
I have been testing several processes. One of these is doable on the job site, with a readily available materials I have only tested this on the specific situations. So therefore, if maybe only applicable on certain types of boats
I will be happy to share this with everyone but before I write a long explanation I need You to do a few things first.
1 fill your profile as much as possible without giving your identity away.
Especially pertaining to your yacht is specifications i.e. prop size, crusing speed etc.
2 post your questions on the " live aboard forum" with the heading "antifouling propellers"
3 promise not to make fun of my writing skills .
I promise You don't have to buy anything from me.
And be patient takes me long time to write simple reply's.
If You have any questions. Feel free to post it here.