[Maritime Matt]

Wore my old Black and Decker out so next was a Dewalt single speed 2300rpm.
Still have it but with all the new compounds and polishes/foam pads to the market over the last 15 yrs, a variable speed was the way to go. Now I use a Makita.
For material, a favorite is 3m cleaner/wax. Works great on lightly oxidized fiberglass. I use a wool pad for this.
If warranted, a coat of Collinite 885 paste or there Insulator wax rounds it out.
I also use Mequiars Flagship Premium marine wax.
I've been doing this stuff for years working in body shops right out of high school and keeping up on the product info. Done hundreds of boats as well.
3m also has a Perfect-It Gelcoat Light cutting polish + wax and a Medium version of the same. Trying that out this year.