I decided to use Revlon - Facets Of Fuchsia over Wet N' Wild - Black Creme because I remember layering this and getting a really pretty dark purple. You can see pics of when I first posted it here.
I didn't want to do the exact same nails so I tried doing a different technique for gradient tips, using clear polish and mixing it with the black while it was still wet. For some reason I ended up with little swirls of black that looked like smoke. I've never had that happen before and I'm guessing it was because I used quick dry topcoat instead of regular. Either way, I liked the effect so I went with it.
I ended up happy. And on the bright side, the issue I had with Facets Of Fuchsia not covering my tips when I first used it seemed to not be a problem.