Okay, So I have this P-up in my Les Paul right now, and it's just got a really thin sound to it, like it's just all treble and no mids. I'm just wondering, is it the P-up that's making it sound that way, the guitar, or the amps I'm using? (Line 6 spider 3, and during the day my Peavey Valveking half stack) Because Mr. Vai can really get a nice fat sounding tone out of it.. Any ideas??