Wet sanding the gelcoat

[fugazi]

here's my five cents.. definitely do the rubbing compound first and by HAND, I stress by hand because though a little labor intensive it always works. Use some old tee shirts or old washcloths they both work better than any power buffer. then do the "wax on then wax off" routine from the karate kid movie. another thing is I found out was that not all rubbing compounds are the same go with 3M stuff, -- namely the heavy duty rubbing compound-- though more expensive than other brands it contains more abrasives and solvents that blasts through the heavily oxidized glass. follow up with 3M's "finesse it" finishing material and finally buff it to a super gloss with a teflon based wax. hope this works for ya. ;)