Product to sit between turntable feet and wood rack


I have set up a new (to me) Kuzma Stabi Ref 2 turntable. It has a steel (type) ball at the bottom of the Plinth’s footers, which I would never want to place directly on my Lignolab rack. I now use a Herbie’s Audio Lab giant cone/spike decoupling glider, with a thin piece of cork to help couple the ball to the brass disc inside of the Herbies decoupling glider. I am enjoying what I’m hearing, but feel as if a little experimentation is in order.
fjn04
Two suspensions can interfere with each other if their resonant frequencies are similar. When they do interfere you get ....chaos.
Thanks for the advice so far. Perhaps I should mention.... My Lignolab rack is a suspended, and the turntable is also. Core audio labs can make me a steel disc which could be machined custom to the size of the Steel ball, so it would have a nice secure coupling. 
Isolating from seismic vibes is more important than draining induced vibes. Thus, you should put isolators not drainers under the board. That’s what they do on submarines.
Maybe take a look at some of the Symposium products and see if any of their offerings might be applicable to your set up, I have really been blown away by them when tuning in my tables which are non suspension VPIs.
They don’t drain anything. On the other side of the brass cup there’s rubber. 


Sounds like a good idea.

Have you tried listening without the cork?
The concept of the steel ball sitting in the decoupling glider is to drain vibration from the TT. The cork may be interfering with that process.
  If you were using these gliders with speakers, metal spikes would make contact directly into the decoupler.