I agree with the comment about the rotary above. My personal understanding of the multi-stage waxes are this:
Stage 1 is normally a cleaner to remove old wax and oxidation.
Stage 2 is swirl remover.
Stage 3 is a polish and wax.
You can mix and match products from various lines. If you go in this order you should be safe. My process is a bit shorter though.
Klasse All in One
3M Paint Sealant
With a wash and clay bar first of course and everything is done by hand.