Maybe (other sources claim 500T/496 in the King V and Explorer), but that Invader wasn't in a thick sounding Les Paul. ?
I have a Gibson V myself that I wouldn't put in Distortions as a 1st choice, because I would loose too much low end. So there's a Super Distortion bridge and a Breed Neck in it to beef it up. I wouldn't be surprised if Jaymz was trying to do that as well.
EDIT:
Found these pics.
Doesn't look like the oversized pole-pieces from the Invader.