I used Del Fleet on my Seafari. I paint cars for a living and we use PPG so that is what I chose. I painted it last year and the paint held up good. I got one scratch from rubbing the corner of a dock so I touched it up and you can't see it. Del Fleet gets hard fast, I wet sanded and buffed it the next day and it was tough! Has a great shine when buffed.
http://i201.photobucket.com/albums/a...511091644a.jpg
http://i201.photobucket.com/albums/a...523091515a.jpg