Magnetic isolation

Excellent, Infection, excellent !
But be careful, you are dealing with very fierce natural forces...

Exactly the same experience. Magnetic levitation is a revelation. For some a Salvation :)

Exactly, Geoff. Furthermore, the stronger (dense) the magnetic field (push) between deck and environment, the better sound quality. In other words, the stronger the magnetic spring, the better isolation and thus sound quality, Stronger magnetic push gives better mechanical stability, IME.  

Sure, magnet´s strength should match to component´s mass. The heavier component, the stronger magnet is beneficial for better sound quality. But springs are not like magnets actually. All springs have mechanical contact whereas magnets don´t. That´s why magnetic isolation is better than mechanical. Furthermore, in practice all opposing magnets are unstable (horizontally), even very thin/small ones. Just try to move close two "weak" little opposing magnets together, they become slippery like ice.

As for springy turntables like ORACLE. I always liked soft suspension with my DELPHI mk II over stiff suspension mk IV. Actually with stiffer springs with the same arm and cart mk IV sounded awful, in my system decades ago. I sold my mk IV and said goodbye to stiff spring TTs.

In sonics springs act/work differently than magnets, IME.

Geoff, my statements don´t conflict (maybe a little typo though ?).
Try this: A heavy deck needs strong magnets but not TOO strong. Then gap between deck and feet becomes too long resulting weaker magnetic field and thus more unstable balance. The essence is dense magnetic field between deck and feet, as dense as possible in fact.
2 mm gap gives denser magnetic field. 

The more dense magnetic field results to stronger magnetic force and thus better stability. The magnetic push needs to be just enough. That´s the trick :)

I´m talking only about heavy turntables. ( I have never liked CD´s dull and edgy sound so I have no idea whether maglev feet would be benefit for digital too).
There is a clear sonic benefit between say 10 mm and 2 mm separate. The narrower the gap between magnets the better sonics, IME.

Anyone tried maglev feet with speakers ?

That´s good... maybe you could try about 1 mm... ;)

Excellent ! LOL