You have quite a project there man! :up
I would suggest to sped $10 buck and grab a pre-wax cleaner (Mothers on Meguiars from autozone) and a pack of terry aplicators. Use them wit the prewax cleaner to clean before polishing. The applicators are toss up, and they will truly be toss-up, because that paint is filthy.
SFX-1 has quite some bite, use it with the orange pad. I don't how it compares to OHC / OC, so maybe you can report it back
Alex
I would suggest to sped $10 buck and grab a pre-wax cleaner (Mothers on Meguiars from autozone) and a pack of terry aplicators. Use them wit the prewax cleaner to clean before polishing. The applicators are toss up, and they will truly be toss-up, because that paint is filthy.
SFX-1 has quite some bite, use it with the orange pad. I don't how it compares to OHC / OC, so maybe you can report it back

Alex