Machina Dynamica under 'table?

I have checked the archives and found some good press on the Promethean isolation platform. Are there any new users or experience with it under a turntable? I have one arriving today to go under my Spacedeck which resides on a rack on a sprung floor. I am hoping this eliminates the remainder of floorborne vibrations that my existing Neuance/DH Cones didn't solve. And as a side note, I am expecting the sound to be improved too.

Any thoughts?

Oz