I saw this tour at what I believe was the opening "warm up" date at the Salisbury MD civic center which is 3 hours south of Philly. We used to get shows like that because the venue was very available so bands could do dress rehearsals and run the gear. Sometimes they would go ahead and put a date on sale so we'd catch shows that we weren't really big enough to normally get for our market size.
Vixen opened followed by White Lion. I was super stoked to see Vito Bratta and Vixen played a damned good set. Didn't really know Zakk at the time, I just knew that Jake E Lee was out so I didn't bring any preconceptions in. Zakk smashed it and the Geezer was on bass so that was a bonus. I had seen Geezer in winter 81 with Black Sabbath - same venue, same deal. Mob Rules tour with Vinnie Appice on drums and Mr Dio on vocals. Plus Alvin Lee opened so it was another cool show.