Magnetic levitating turntable shelf-opinions?

As Ed says, my platform does only isolate in the vertical dimension, as the others are blocked by bearings and posts. The fact that you can't levitate in more than one dimension was derived in the previous century. The platform does act like it is suspended by four springs, however actual springs could not operate in the same region nor change parameters as rapidly as the magnets do, so they are better than other mechanical systems. In my arrangement, the turntable rests on cones and a black diamond racing shelf which are on top of the platform. Together they are a significant mass and do not tend to move. My interest is in suppessing the large transient vibrations generated by, say, someone dancing on my wood floor. It does that very well. Due to the mass of the system the vibrations are not transmitted to the table and dissipate elsewhere.

Guys,

I stayed up most of the night doing some experimentation. These are my results:

Note that my music room has a carpeted concrete floor.

Moving my preamp and turntable into the garage which is next to my music room provided no audible improvements.

Placing the turntable on an air bladder platform provided no audible improvements.

Some tack welding, several solenoids, a car battery and a 3/4" piece of MDF levitated (pretty crude setup but it worked) and a lot of effort in leveling this device provided no audible improvements.

Conclusion:
Back to basics.

I appreciate all the input. I believe that John clarified what conditions the levitating platform would be useful in. TWL, I have a suspension turntable and can attest to your practice of coupling to a solid surface as having always worked well for me. I do think the solenoid system could offer some real benefits except if it got unplugged. :~(

I just got the SAP Relaxa 1 & put it under my turntable. I think it's pretty effective because one of my records used to trap the stylus but doesn't any more. Besides, the focuses also get improved.