Well I guess it depends alot on what condition the surface is in.
When I bought my 83 Daytona it was in sadd shape. So I did the wet sand, micro fine paper. Then used Meguires 3-step Boxed product for gel-coat oxidation ,with a buffer...It came out really nice. That was five years ago. Now I must always use the marine polish and there Cleaner Wax or Yellow Wax. I'm thinking of clearing over it to keep the gloss and cut down on the elbo grease!