Just sold my first boat and I've got one eye on another already. It's an '09 Key West 186 DC with bottom paint. I'm only used to seeing bottom paint, in Florida, on larger vessels. What exactly is the purpose of bottom paint and what are some of the advantages? I've read that depending on type of paint used, it needs to be redone every 1-3yrs? I plan on calling around to get some estimates. I trailor my boats so it would not be sitting in water. just wondering the pro's/cons.