Plant's mobile studio was parked in an alley behind the Ritz to capture the performances on tape. The band members dressed down, not wearing their usual stage clothes, with Osbourne himself sporting sweatpants and a bald head after drunkenly shaving off his familiar long hair a few days prior. Near the ends of the shows, as "Iron Man", "Children of the Grave" and "Paranoid" came up in the setlist, the band let loose and made less effort to play tight, as they had been told by management that these performances would not be included on Speak of the Devil; previously recorded live versions of those songs featuring Rhoads on guitar were to be used instead. A decision was later made to save the Rhoads versions for a future release, and thus the versions of those songs which ultimately appeared on Speak of the Devil were taken from one of the performances at The Ritz. Sarzo recalled listening to the final mixes of those songs and being appalled at how sloppy his playing was on those three tracks, as they had only run through them a couple of times in rehearsal. As the band, minus Osbourne, flew back to Los Angeles on September 28 after completing the shows, Gillis played them the demo recordings he had made with Night Ranger that would comprise the band's soon-to-be released debut album, while Sarzo played them the new Quiet Riot recordings he had been working on in secret. Upon arriving in Los Angeles, Sarzo promptly quit Osbourne's band and officially rejoined Quiet Riot, prompting a long and bitter feud with Osbourne that would culminate in the vocalist assaulting him backstage at the US Festival in 1983. Gillis also left Osbourne's band shortly thereafter, returning to Night Ranger weeks later. Speak of the Devil represents the only official Osbourne recording to feature the guitarist's work. Album producer Max Norman stated in 2007 that due to a limited budget, he had Osbourne and the band perform an entire extra show with no audience in the afternoon of either the 26th or 27 September. Norman recorded that performance in the event that the actual live shows were not of suitable quality for release. "At least we've got a choice and we'll have more material to draw from", he said of this decision. According to Norman, the finished album features three songs from that performance with crowd noise