There are several extended threads on this over at prosoundweb on Harvey Gerst's forum:
http://recforums.prosoundweb.com/index.php/f/32/0
Near as I can make out he recently had some kind of bad auto accident -- although there are people complaining about work that should have been completed a long time ago.
I'd be cautious about engaging him on anything new at this point until this sorts out. Best of luck with your mic.