After leaving Gass and the evolving Gonzalez he joined the Jeff Beck Group and recorded two albums including Rough and Ready as well as touring with them. Jeff Beck included him in a later touring line-up with bassist Tim Bogert and drummer Carmine Appice formerly of Vanilla Fudge. He recorded sessions with Ginger Baker contributing to the album Stratavarious credited as Bobby Gass, which also featured the Afro-rock pioneer Fela Ransome Kuti. During this period he recorded tracks on two albums including Burglar with Freddie King. He also contributed to an album with Wailer Junior Marvin's band Hanson and was credited on Linda Lewis's acclaimed album Fathoms Deep.
He signed to A&M Records and formed Hummingbird in a line-up including former band mates bassist Clive Chaman and keyboard player Max Middleton, Atlantic Records session drummer Bernard Purdie joined the band for the last two albums We can't go on meeting like this and Diamond nights. Associations with Chapman Whitney, Mike Patto's Boxer and Luther Grosvenor's Widowmaker followed, preceeding his involvement with three studio albums by Streetwalkers including the much respected Red Card album.
After his commitment to Streetwalkers finished he was involved with the production for Van Morrison’s album Wavelength which became Morrison’s best selling album at that time. He also featured as a member of Morrison's studio and touring band and during this period recorded with Eric Burdon and Axis Point before Steve Marriott included him as a member of Humble Pie, who he toured and recorded with.