...Introducing Meguiar's NEW professional grade compound for professional detailers. Our new super fast cutting, low swirl compound removes sanding scratches and heavy oxidation without scouring the finish like traditional compounds. It is designed to offer speed and efficiency on Marine & RV fiberglass gel coat surfaces...

Try...

http://marinerv.meguiars.com/product/newproducts

This is more for the heavy-duty stuff on fiberglass.

ya know, it makes me wonder---just how many different variations of compound and polish are REALLY necessary? It's like, if you're using a 400 grit sandpaper, would a 395 grit paper be better?

I tend to use one Cleaner/Wax (#50) most of the time, then as many levels of grit as seems are needed in special cases.