Watched a chunk of one of the older G3 videos (the one with Petrucci whenever that was) as I lay sick this past weekend. Sheehan was playing with Vai and damn was it fun to watch them together. It's been a long time since I thought of this pairing - I saw them on Eat em and Smile and Skyscraper tours... pretty mind-blowing shred stuff for my then young eyes and ears. That's all I have to add really. Seek it out if you dig that sort of thing.