Mochamanz1
Sun Blinded Detailer
There isnt any either or....BOTH Z2pro, then Souveran, Nice choice BTW 

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Scottwax said:On black, I'd go with Souveran. Other than Poorboy's EX w/carnauba and Wolfgang (a sealant that very closely mimics the look of a carnauba), I haven't found a sealant I like on black paint. Not that they look bad, but to me they look like a layer of wet glass on the paint. A lot of people like that look though so you may want to try both Z2 and Souveran and see which you prefer. Make sure you look at both in the direct sun and under good light at an angle as well.