I replaced the adjustable, sprung, compliant stock feet on both my Luxman PD444 turntables with brass cones, points down, resting on brass indent receptors that then rest on Aurios media bearings. This system rests on 3-1/2" of rock maple tabletop. The table also has large brass cones as feet. The brass cones under the turntable are attached to it via double-side-adhesive Herbie's 2" Grungebuster dots.
I arrived at this combination after experimentation with several types of contemporary coupling/isolation/resonance control options, including magnetic levitation, hard balls in silicone cups, stock feet, cones alone and Aurios augmenting all other footers tried. I also tried maple blocks under the turntable.
The Luxman PD444 is a fairly heavy turntable, over 50lbs. with one or two tonearms, dustcover, mat, etc. Magnetic levitation (I used Yeil Spike Sound Will 40kg version) was the pre-game favorite but came in 2nd when it was all over. Mag-lev had advantages in its light, fast, ethereal sound but has some impractical downsides when handling a table with a thick acrylic dustcover. Still, if that had sounded best, I would put up with the handling issues.
Cones alone were competitive. I am using BBC Large Brass Cones, which are gold-plated. They are height-adjustable and each one weighs 13.5 ounces. Cones grounded the sound, stabilized the soundstage, and made large improvements to transient impact and bass depth & clarity. Aurios however, were essential to completing the picture of dynamic life while enchancing tone density and restoring some of the ephemeral qualities delivered by mag-lev but lost with cones alone. The addition of Herbie's Grungbuster slivers between the iron underside of the Luxman and the brass cones was a final tweak for neutral presentation.
My turntables reside in a California slab house, wood flooring over plywood over thick concrete slab., so footfalls are not a problem. But we have constant tiny tremors throughout any given week, the planet contributing its own sound to analog. The Aurios help clean that up as well.
One more thing: Mag-Lev is the best single improvement I've heard in digital. Trying mag-lev on a variety of disc players at several price levels, the effect was uniform -- more dynamic life and clarity, sharp reduction in digital fatigue, more tone, more spatial presentation. The effect isn't small. Adding $200 worth of Yeil mag-lev is like moving up three or four levels of upgrade in digital playback.