Jon has got vocal problems since the slippery tour.Tokyo 1985 was the only concert which he was incredible about high notes.I havent listened a really great bad medicine or lay your hands on me live from the new jersey tour.Both of them were not so good at moscow music peace festival and jon was terrible at 88 tokyo.But in the blood on blood video and i ll be there for you live from florida lakeland they were highlighrs of the tour.In early 90's jon's voice is at his best(Blaze of glory and Keep the faith era).Crossroad tour 95 is ok but jon's voice is not as strong as the keep the faith tour.