@ieimago Stated "I have owned many arms over the past 30 years and these are the most musical and graceful I've yet encountered. Everyone who hears them is absolutely amazed and beguiled. They allow the cartridge to breath and achieve their absolute expression. A beautiful design."
I myself have not owned many arms' but did get through a couple which are still owned to get to the place of owning a SME IV. The IV remained a Tonearm not be be investigated for change for many many years.
At a time when the notion was to develop, that maybe more could be on offer from the IV. As part of my investigations for the IV, I was to discover a Tonearm that was a Design produced for a already existing Tonearm. Where the TA was introduced to new modern design materials and machining tolerances. that were not typical as a tolerance or available material at the time the TA was in manufacture and being marketed.
Your description offered about 'breath' and 'expression' is completely fitting to my own experiences had using the TA I have adopted in place of the SME IV. I always feel the Cart' when mounted on this TA Design is a optimised interface for the Cart' that is mounted. As I know of Four of these TA's in use and get to hear them coupled to a selection of Cart's used in a selection of systems. My thoughts about optimised interfacing is drawn from more than my own encounters in my own system.