I was in a place called The Experience one night in ‘68 or ‘69. Mike Bloomfield was in there, Jimi Hendrix was in there, Elvin Bishop. The premier guitar players all playing, all taking a solo … then Frank gets up and does an imitation of everyone there - Mike, Jimi, the whole thing - and then plays his own stuff. You should’ve seen the look on Hendrix’s face! He blew everybody away. People were just astounded by the guy’s virtuosity.