VPI table isolation

Good move on the SDS. I'm sure you'll get the vibration resolved. Let us know.

VPI at one point recommended putting a mouse pad under the motor, you can put softer rubber feet under the motor to reduce vibration being transmitted to the rack and back to your table. ideally you want to absorb all vibration from the motor and that will take more than one type of material, you can stack maple, rubber, aluminum, sand, etc to more effectively reduce vibration transfer.

There is so much B.S. talked about isolation that we seem to ignore common sense. All motors vibrate,the vibration is transmitted to what they sit on and in turn to what sits on that. Put 3 or 4 vibrapods under the motor,cost $20-$25.I GUARANTEE this will fix the problem.The mouse pad works really well too.
I bought a stethescope to help me figure out what really works on vibrations. While I do use some cones(mainly BDR)they do very little to stop the transmission of vibrations. What they tend to do is change the resonance of that vibration with small audble results (sometimes)
My experience using the stethescope has been that only pliant things such as rubber, air filled bags, springs, gells etc stop or reduce the tansmission of vibrations. This is born out in the really world also were thesetypes or materials are used on electron microscopes and pumps and motors etc. You don't see microscopes on Stillpoints

I have a VPI Scoutmaster sitting on a Ginko Cloud 11 but I also use Blu Tak under the motor. Works well.

Semi called it. The mouse pad did the trick. I will look for an elegant long term solution, but the vibration is gone.

Thanks everyone for the help.

Bob