There was a period in the late '80s where rock guitar was headed in a highly technical direction, where you'd have to practice on your instrument for hours upon hours to keep up with the players in your latest edition of Guitar for the Practicing Musician. One of the best examples of this was Racer X, which included not one but two "shredders": Paul Gilbert & Bruce Bouillet. However, by 1989 the group was kaput when Gilbert decided to jump ship & join up with bass extraordinaire Billy Sheeh