here is what i think....
I've applied the blackfire gloss enhancing polish II and then followed the polish with a coat of the all finish paint protection approximately 4 times on 3 of my vehicles (black bmw, silver merc, and green infiniti). Sometimes I would apply an additional layer or two of the all finish paint protection.
each time after applying the all finish paint protection, i've noticed a haziness/difficulty buffing off the all finish paint protection despite buffing like a mad man. it didn't look good and i was disappointed. i've spoken with the guys at CMA and they've stated that i've been applying "too much product". however i've tried applying an incredibly scant amount and still ended up with the same result. So i've topped off the all finish paint protection with Souveran carnuaba wax and it looks great. Of course the carnuaba wax will last a month or two and then dissipate, but then you'll have the protection of the underlying blackfire all finish paint protection.
yeah applying the carnuaba is an extra step, and probably worth it because it looks great. however, i wouldn't buy the blackfire again once i run out because of the difficulty buffing it off. but it'll probably last me a year or so, so by then hopefully something else better will come out.