The first music dealer I sold Big Muff Pis to was Manny's Music. Henry, the co-owner, told me he’d just sold a Big Muff to Jimi Hendrix. At that same time Jimi invited me to a session he was doing in Manhattan. I was anxious to see him and show him a prototype of a guitar that had a speaker screwed into it that generated great sustain. When I got to the studio, on the floor plugged into his guitar was the Big Muff Pi he’d bought from Manny's Music.