The 60 grit sandpaper on the palm sander seems to be working the best so far on the big flat surfaces.
I used the wire brushes and the angle grinder sand discs in the tight spots like the rain gutters above the doors, after removing the chrome trim. When I used the brushes on the flat surface it seemed like it was scratching the metal, maybe exposing prior scratches, I'm not sure.
The 3M Light Rust and Paint Remover disc wasn't worth it, it bends and is probably good for just that light rust removal, LOL.
