"...a search generates only 1 mention of the Zephrins in 2 years?"
I haven't sold any Zephrins since moving from Idaho to Texas three years ago. The vast majority of my work is in prosound, and the Zephrins are very labor-intensive, so I haven't really pushed them.
Here is some earlier online commentary:
https://parttimeaudiophile.com/2014/06/25/newport-2014-audiokinesis-and-electra-fidelity/
http://www.theabsolutesound.com/articles/2014-newport-beach-show-report-speakers-under-15k/ (scroll down a little)
That being said, Clayton Shaw is a totally awesome designer and an equally awesome individual. He uses his superpowers for good. I was a dealer for him many years ago, in the early days of Emerald Physics, and he has only gotten better since then. If you decide to go with the Triode Master, my feelings will not be hurt. Or if so, only a little bit.
Duke