Singer/songwriter Bob Segarini and multi-instrumentalist Randy Bishop disbanded Roxy and joined with singer-guitarist-keyboardist Michael Stull to form the new group in Eureka, California.
The next year (1972), the band moved to Montreal, Canada around the time that they released their sophomore LP Hot Wacks to good reviews.
[1] The album, recorded at Andre Perry Studios, and produced by Gary Usher,[1] featured "I Hardly Know Her Name" and a cover of John Lennon's "Oh My Love".
[3] Billboard, April 15, 1972, had this to say about "Hot Wacks": Comparing them favorably to the Hollies, the Beatles, and Crosby, Stills, Nash and Young, Bill Mann, Montreal Gazette, called The Wackers, "one of the tightest singing groups around," adding, "theirs is a vocal alphabet soup with a little bit of everything thrown in (with the letters spelling "Sho good listening").
[6] Despite Michael Stull leaving the group shortly after the move to Montreal, and April Wine drummer Jerry Mercer and guitarist JP Lauzon playing on several of the Shredder tracks, Segarini, Trochim, Bishop, and Earnshaw went on to record an unreleased fourth album, "Wack 'n' Roll.