In reply to Powerdoctor, I have my rim drive SSM on a BDR Shelf for the Source and it sounds fantastic. I have Nordost pulsar points under the shelf which are in turn screwed into a Target stand on spikes. Haven't had the VPI for long and so I can't say it's optimized yet but Wow....
Rim Drive Mod or how to make it even better
I was going to just add this post to a previous post regarding the VPI rim drive, but this is important and I want all those who use the new drive to know this. I just spoke to Harry W who told me that if you use sorbothane, or soft felt, etc, under the feet of the motor/flywheel assembly, the sound is even more improved. Don't use it under the turntable itself...only under the motors. I tried it and it REALLY works.