During the seven shows of the Japanese leg of the ‘Detonator’ tour in

During the seven shows of the Japanese leg of the ‘Detonator’ tour in February 1991, Crosby’s substance abuse caused his playing to become increasingly inconsistent onstage. During one particular show, after the band performed two songs using non-standard tuning, Crosby did not properly switch out guitars with his guitar technician; as a result, he was not in tune with the band for the next two songs. The last show of the band’s Japanese tour, in Osaka, turned out to be Crosby’s last with Ratt. When the band returned to the United States, Crosby again checked into a rehab facility and Ratt continued on with Michael Schenker , formerly of Scorpions , UFO , Michael Schenker Group , and McAuley Schenker Group .