I'm about to get a Gibson Firebird nr in Pelham Blue with the 3 P90's. It looks like a great guitar and I'm a sucker for P90's. Does anybody have any experience with these? What are the plusses and minuses? Any mods or upgrades I should consider? It looks and sounds great judging from the few demo's I've seen and I actually like the wonky esthetics. The Pelham blue doesn't hurt. I'm just interested in your opinion on the guitar. This guitar has never been on my radar until this deal came up and there aren't many hands-on reviews to find.