Hi- I have an 6.1 trailcraft and believe me the sun is a real killer if you don't use a quality cover. Every two to three years I'm up for new clears, carpet, seat covers. It also degrades any hard mounted electrics. As for paint again if you don't use a quality cover along with the obvious fading the likely hood of electrolysis increases as the boat tends to stay damp and all you need is a liitle salt,a little water ...........