First VVI album was Robert Fleischman on vocals. His most notable accomplishment besides getting booted from VVI was getting booted from Journey for Steve Perry and he does have some co-writes on the Journey Infinity album. And interestingly enough there are some Journey vids on youtube with him on vocals live. On another note, several of the songs on VVI's first album were intended to be Kiss songs for the follow up to the Lick it Up album. To bad Vinnie couldn't keep his shit together with Kiss because his playing needed to be reigned in. You can hear he has the ability to have alot of melody in his playing but instead he just pukes notes out.
Second VVI album is all Mark Slaughter.
Both are an acquired tasted IMO.