painted with LP 5 or 6 years ago and some spots are looking kind of worn. I'm sure someone here has repainted their decks and I was wondering how aggressivve I have to be in the prep work. I have scrubbed the entire area with a red scotch bright pad and sanded the chipped area. Is this going to be good enough or do I have to sand everything? Sanding all of the diamond plate would be a real Bi%$#.