Conversation so far:
What happened witht the Incredible String Band in 1971?
Rose Simpson left The Incredible String Band in 1971 and Mike Heron took time out to record a solo album.
Why did Mike Heron take time off from the Incredible String Band?
Mike Heron took time off from the Incredible String Band to record his solo album Smiling Men with Bad Reputations.

Question: was he successful?
Self-contained rewrite: Was Mike Heron successful with his album Smiling Men with Bad Reputations?