I interviewed Schencker in the early '80s. It was, in fact, Ted McKenna on the skins back then. After McKenna finished his stint with Rory Gallagher, he went to MSG, and Glen came on board, as well. The night I saw them, and interviewed him, they had a backup singer offstage that was just incredible. Glen was there with a pair of women. The three of them left the soundcheck, and returned about an hour and a half later, all looking pretty disheveled.
When I interviewed Michael, he told me that the reason he left UFO in the first place was because he didn't think he could survive another tour with them. All the abuse had reached the level where he seriously thought he'd be dead if kept it up.