Not so easily answered, depends on your tt support. I recently tried the Gingko on my DIY 3" thick maple wall shelf, much prefer the Bright Star Big Rock under my Scoutmaster.
I suspect my results are due to maximizing draining of internally generated vibrations. The VPI's are a mass loaded design, ie. internal vibrations are drained into the plinth, then into the vpi spikes. In my setup the spikes drain into the sand box, from there into the maple shelf, then into the shelf support, finally into the wall studs.
I suspect that with the Gingko you are somewhat shortcircuiting that drainage with the rubber balls, which to some extent resonate internally generated vibrations back into the table. In essence, you are adding suspension to a design that is not meant to have suspension.
Now, on the other hand, some claim the Gingko to work fine. My take is their tt support is not as well isolated to begin with, the Gingko design does eliminate EXTERNAL vibrations very well, this is why they may hear an improvement.
As usual YMMV, and if someone has information to disprove my theory I'm anxious to hear it.
