Cones,with a good solid shelf underneath.Preferrably a Symposium shelf.
Just ran across this thread- The reason is that the Sota has a spring suspended subchassis with a low fundamental 'bounce' frequency, of about 2HZ; this makes it nearly immune to high frequency vibration, but vibration at or near it's fundamental can send it into resonance. The soft rubber feet are themselves springs, so the whole table has a fundamental that's undesirably close to the fundamental of the subchassis. With the table base on cones(preferably threaded in tight), on a rigid support, only high frequency vibration reaches the suspended subchassis, which it can easily deal with.
To demonstrate the resonance effect, take your table for a ride in a car, which is suspended at just about the same frequency as the table; it will go NUTS! Unless you lock down the subchassis, of course. Or don't risk damage, I've done it, so you don't have to.
I switched to Audio Points cones and noticed a "clearing up" of the music. Putting my SOTA on a Mapleshade made a bigger improvement (I started with a 2" slab, now a 4" slab). I tried a Boos maple cutting board, and the Mapleshade was so much better. It got the "wow" factor from my wife.
Earlier I had the SOTA on a wall mount (Target) with either the original MDF shelf or a 1.25 cutting board that fit inside the rack. The Mapleshade sounds much, much better (not using the wall shelf, just a Salamander system with the Mapleshade).
No issue at all, it only sits a bit higher. I dont use my Reflex clamp all the time as the Vac hold don is good on most but for warped records it is more of an issue, there are some carts that will hit the clamp so I know others dont use it all the time either. The clamp is really nice for cleaning records, its quicker to get on and off and keep the labels dry if you get careless.
There are Audiopoints available to work with Sota turntables. I use a couple of Starsound products in conjuction with my own designs in the grounding and mechanical coupling of musical instruments. I also use the Audiopoints in unison with my LP12 turntable. The Sota needs an internal thread design probably the 2.0ap-1bint. You may also want to use the APCD coupling disc, when used on certain surfaces these are of benefit sonically as well as providing surface protection. Thats what I know..Tom