I read an older post where you talked about DuPont Imron. I'm thinking of going this route too, by painting the upper 1/2 of my Prostar. I'm wondering how you maintain the border between the gel-coat and Imron. If the painted area needs to be roughed to 320 grit and the gel-coat needs to be sanded to 2000 grit then buffed, how does one get the edge of the gel-coat shining w/o ruining the paint? Any insight on your waxing/polishing regimen would be appreciated.