I loved my oc9 in my systemdeck with hadcock arm. This was so good I completely forgot about trying to improve the sound, I was completly happy.
I used the OC9 cartridge form 85 to 93 when I got my glider, but I really missed the oc9, it was very quite in the grove.
Many say at this price point the Dennon 103r is the best, and a rega arm is a good match.
For the twl mod just lookup twl and email him.
I have the mod on my Origin Live Silver and it is killer.
You can go to the thread.
Strange tonearm tweak long.
here is a clickable link
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1032024188&openusid&zzTwl&4&5#Twl
Peace
Ron