Turntable isolation platform Recommendations?

@syntax -thanks, noted. I remember the Kuzma Reference- had one, very easy to set up, sounded good, had a Triplanar on it at the time.
@mijostyn- I had the HRS in NY and was able to isolate the high mass table through a combination of mass loading and judicious placement of other equipment. There were some old photos of the system there I could dig out that show the table placed on a huge old Asian prayer table- we added huge chunks of sorbothane to the prayer table legs, but it was a kludge work around at best. In my NY set up, the HRS alone could not isolate footfalls and in fact, I think that some of these isolation platforms do not do that very effectively. The Minus K does.
The MinusK was purchased when I moved- to a restored Victorian house in Austin with springy wooden floors. As to adding the HRS, I didn’t like the idea of the metal turntable coupled to a metal top on the MinusK. I did speak to the owner of HRS and as I recall, he didn’t indicate any issue when I discussed using the HRS with the Minus - he did suggest I send the HRS back for a newer footer, but I didn’t bother.
You are welcome to visit if you come to Austin.
PS: on the spec of the Minus K, it takes the HRS into account and also provides me with just enough load capability to add a second arm pod (at 30 lbs). I had never ending problems trying to balance the Minus K with both arms, though. See here. Have no present plans to add the air bearing platter to the XL, but thinking about some different horns. That’s a whole other discussion! 

@whart I have my SOTA on a Stickley “ prayer table “…. ha.

@tomic601 - was just listening to an old Jackie Mason routine on jews and gentiles-- hilarious. As a member of the tribe, we typically had no mechanical or other manual labor type skills- we'd call a guy. Now that I'm in the post-career phase of my life, I'm learning stuff about HVAC, plumbing and electrical around the house, but I always think about that Jackie Mason routine. He was a very funny guy-self-effacing, and got laughs by mocking his own. 

well the Brinkmann is on an HRS, cause “ I know a guy “….agree, in retirement there are more things to muck around in…. Most of the HVAC, especially the AC i leave to my expert. We trade salmon and shrimp for cold air…..

@lewm, Get a spring. Glue one end of the spring to a piece of plywood so that it is standing upright. Now, start adding mass until you get the resonance frequency down to 3 Hz. Hint, you will never get to 3 Hz. The whole affair will fall over long before you get there. Now hang a spring from anything handy. In IV pole would work great. Start adding mass until you get to 3 Hz. It will bounce at 3 Hz and come to a rest in exactly the same spot every time. Hanging a mass from a spring is far more stable than sitting a mass on a spring especially at low frequencies. This is basic spring science Lou. It is why a Sota will tolerate foot falls and an LP 12 will not. 

@whart , I know, setting up a turntable on a MinusK platform can be an adventure. You have to get the center of gravity right and in your situation you have to do it juggling the various pods. The other problem is that you have to be very deliberate when handling anything or you can get the whole affair bobbing. One of the main reasons I like the Sota over the SME and Basis turntables is the suspension is internalized so you can put your hand down on the table without getting it dancing or causing it to skip. Have you looked at the Dohmann Helix? That is my ultimate turntable for the time being. 

I got news from Donna yesterday. My Turntable is finally under construction. (after 9 months)