I had the same question when I bought my black x-fire.

The feedback I got was to use:
Zaino
Z2 with ZFX accelerator
and Z6 gloss enhancer between every coat.

Also use a microfiber towel.

I haven't used these products yet but the overwhelming response peaked my attention.

I come from a family of gear heads that use Meguiars. I'm sure I will try both.

I am afraid to get swirl marks or spider webs. I'm dragging my feet. I will probably give in and pay someone.