First of all, it is a great pickup for shred! Very aggressive, lots of harmonics, cutting top end. I think it sounds mostly like George Lynch/Dokken, Megadeth/Slayer, Zakk Wylde. I don't know Gilberts tone, but Vai's more modern sounds I'd put more in the Nailbomb ballpark. Joe Satriani as well.
So you could go with the MM for the aggressive stance or the Nailbomb for the more "refined", classy sounds.