Raul,
I can not recall the wood that makes up the Teres Reference Tonearm. It is stained the same as the Cocobolo wood of the turntable. The arm is a 2 section wooden arm that has the latest wiring and the latest rca interconnect wiring and connectors to run to the Phono Preamp. The design of the arm is based upon a 10 months or more of Chris's experimentation and I will defer to him to further describe what has gone into its design.
As to the usage of the Still Points, this was I believe what Chris had previously found to be the best performing footers for the Certus Control Box. The Still Points are an extra cost add on for the Verus Motor and Control Box as well. When Chris had first tried the Mystery Feet under the Verus Motor, I believe at RMAF, he observed a noticeable performance improvement. But, he has not had a Certus Turntable available to test as far as I know for the last 6 months or more.
When Chris installed my Teres 450 he informed me that I had what was to be the last very expensive, heavy satin silver finished brass Certus Control Box. So, as I mentioned, Chris had not had an opportunity to play a Certus unit for sometime when we installed the Mystery Feet. The Mystery Feet are "State of the Art" and have been very well received outstanding reviews. They are also among or are about the most expensive feet presently available. In any case, Chris and I both found that there was a dramatic increase in focus, imaging, soundstage, "air", openess, clarity, detail, shimmering high frequencies noted for bells and triangles, life like and relaxed sound, more micro and macro dynamics, percussive performance, controlled bass, blacker backgrounds, etc. How much can be attributed to the interaction with the granite surface of the granite/mdf sandwiched platforms I can not say at this point.
One thing that I forgot to mention was that we also found an marked improvement in the usage of Herbie's Audio large dots under the Teres 450 feet.
The Cartridge and the electronics at this point probably only have maybe 15 hours of break in and we presume that there will be a decided performance improvement at about 50 hours.
Rich