On June 11(1969), Bobby Ace and the Cards from the Bottom of the Deck played at California Hall. It was a quasi-benefit for Scientology, because Bob Weir had listened to T.C. over the winter and studied L. Ron Hubbard’s ideas as a way of strengthening his position in the band. After a few months he decided that he neither felt nor played better, and was tired of paying money for nothing, so he quit. The benefit was actually his good-bye to Scientology, and featured Garcia, McDuke, David Nelson, Phil, Mickey, Peter Grant on banjo, and Tom Constanten on piano.