also did a Rush (Cygnus And The Sea Monsters) and the Who (Amazing Journey).
Mike Portnoy uses him in all his tribute bands, why wouldn't he?
Edit: Gilbert plays tribute to Hendrix as well as many other guitarists, and he usually just uses his Laney GH (or "similar" sounding Marshall if one is not available). He likes it a lot. Seems that was his first EP it likely was not that setup though. Best of luck finding out.