Call me crazy, but I've tried quite a few different waxes on my jet black with the same prep and I can tell the difference. Now the difference in appearance is quite obvious between a sealant and a wax (both can look great on jet black with proper prep, but I find sealants give a more "polished" look).
Turtle Wax paste -> P21S 100? I can really tell the difference. Turtle Wax comes across cloudy.
Now, when you compare two top quality waxes, it is tougher to tell, but just like I can see scratches on my car that nobody else can see, I can tell which wax I like better.
Plus, combos matter. I think P21S 100 alone on my jet black is pretty good.
Three properly cured coats of UPGP alone is also pretty good.
UPGP topped with P21S 100 is awesome on my jet black.
Turtle Wax paste -> P21S 100? I can really tell the difference. Turtle Wax comes across cloudy.
Now, when you compare two top quality waxes, it is tougher to tell, but just like I can see scratches on my car that nobody else can see, I can tell which wax I like better.
Plus, combos matter. I think P21S 100 alone on my jet black is pretty good.
Three properly cured coats of UPGP alone is also pretty good.
UPGP topped with P21S 100 is awesome on my jet black.