Kuzma 4 Point Tonearm

I never used the oil but I was using very low compliance cartridges at the time. The OP's Soundsmiths are also low compliance cartridges so I do not think they will need it. 
Check out the Reed 2G, Also a great arm. Similar vertical bearing, magnetic anti skating and arm wands of various effective masses. I did not get it because I do not think it will fit on the SOTA. The Schroder CB 
is such an elegant design. It looks so simple but it is not. There is a lot going on in the central pillar. Like Michael Fremer I have become a fan of shorter arms. Distortion over all is lower because shorter arms have a much lower polar moment of inertia. The lower frequency irregularities of the vinyl are ignored by short arms. But with an oscilloscope you can easily read it with more massive arms even if the cartridge is matched.
I would go with the 4 point 9.  

Audioquest for life, you sure like phonograph stuff. The 4 point is a great arm. I like the 9 the best. I just ordered a Schroder CB 9". It will be in my hot little hands on Thursday but the turntable is still about 15 weeks away:-( I picked the Schroder over the CB because of the magnetic damping and antiskating which I feel is superior to the 4 points mechanical antiskating. It is also a lower mass arm which suites the cartridges I use. I prefer more compliant cartridges with advanced stylus profiles as I have seen enough evidence that convinces me record wear is much lower. The Clearaudio Charisma just blew me away. I now also have my first Soundsmith cartridge, The Voice ES which I am psyched to try but I'm waiting until I can put it in the Schroder. 

Randy, I hope your new table provides you with a lifetime of pleasure. If you have any issue with the 4 Point feel free to message me. I know less than nothing about the TechDas. Should be a top notch performer.

gpgr4, that is exactly what I have found. A blank wall. I have one retailer who is supposed to be posing the question to Dohmann. I'll let you know if I find out anything.
The current table uses reflex clamping, the next best solution.
If I had to guess, adding vacuum will change the center of mass of the table requiring a redesign of the MinusK suspension. It would make sense at that point to issue another model. 

I had a 4 point 14 and for low compliance cartridges like Koetsus and Air Tights. It was the nuts. Very easy to adjust, great bearing set up, proper geometry, Neutral balance. It is hard to do better. So, why did I sell it?
I needed to get all the money out of my turntables and cartridges because I plan on getting a Dohmann Helix as soon a vacuum clamping is added. I will put at least one Schroder LT on it. Have not made up my mind about the second arm but it could be a 4 point 14 or another LT or  a 12 Schroder CB. 

The 4 Point's competitors are the 12 " Schroder CB and the 12" Reed 2G.
I could go with any of these arms. Top notch designs all.