I asked this question awhile back and received several great responses - here is the thread:
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1165589176&openmine&zzSeasoned&4&5#Seasoned
I ended up using a Clearaudio Maestro Wood and love it. I have never had any issues with the cartridge on the JMW9 - it is a wonderful match. I am tracking at 2.1gm with a perfectly level VTA.
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1165589176&openmine&zzSeasoned&4&5#Seasoned
I ended up using a Clearaudio Maestro Wood and love it. I have never had any issues with the cartridge on the JMW9 - it is a wonderful match. I am tracking at 2.1gm with a perfectly level VTA.