I saw Bloomfield (and the awesome Buddy Miles) in The Electric Flag in the Summer of ’68, at The Santa Clara County Folk-Rock Festival. Mark Naftalin was playing piano, Harvey Brooks bass, Nick Gravenites singing, and four sax players---two baritone, and two bass! The opening act was local band Fritz (Stevie Nicks’ and Lindsey Buckingham’s garage band), closers the doors.
Speaking of self-destruction, Skip Spence of The Grape was living in a half-way house in downtown San Jose after he was released from the nut house. He could be seen roaming the streets, bumming cigarettes. Damn LSD. He was the drummer on the first Airplane album.