@dover That assessment you have offered might be very good for @rich121, as it does seem this is a method being considered for their SP10 Mk III,which I am assuming is very similar to the one seen in the link.
I do not know if the version you are referring to is one based around this type of design, or if it was built into a different material as he Support Structure. My experiences are when selecting materials to be utilised as a structure for a TT's plinth, there are plenty of materials that can be detrimental to the TT's sonic capabilities.
I have never really developed an interest in the Mk III, I don't recollect any time when I was watching the market for one, this leaves me with little knowledge about how these TT's have been bettered over the years.
I can't at present comment on the Sonic produced from a Kaneta Design or Variant used for a SP10 MkII, as I am yet to experience one.
When the Kaneta Variant demo's are taking place, the comparisons will also include a Panzerholz Plinthed, Standard SP10 MkII refurbished by one the UK's renowned individuals who refurbishes/modifiers this model.
Fortunately for me I am very much enjoying the ownership and usage of my SP10 MkII. When used in my system, it has been a captivating experience.
For many who have been demonstrated it, it has seemingly been captivating as well.
The notion of how much others enjoy the system, is from the time when I demo'ing at a public attended event and out of 50 exhibitors and approx' 500 Paying Visitors to the event, my hotel exhibiting room was crammed with attendees for the bulk of the days exhibiting. Individuals were clearly stating the set up was the best on the day of the event. That as a gross assessment is certainly better than an assessment from one individual, making their claims of whether an experience has been attractive or repellent.