My 1st experience with a machine buffer

[Carn]

The amount of correction you can achieve will be determined by the severity of the defects, and the thickness of the available clearcoat you have to work with.

You may well get better correction from a few more passes, or with a more aggressive product, but without knowing how much paint you have to work with you may also compromise or completely destroy the clear coat

Wet sanding is about the most effective way to remove orange peel, but again without a coating thickness guage and sufficient clear coat to play with, the risks outweight the benefits IMHO.