Since this thread started I have been contacted by numerous people wanting to join this party, but they are too intimidated.This is the reflex thought that I heard often, but IMO the ET arm is not only very transparent sonically but also in its technical design.
It’s quite easy to adjust and very logical so.
Regarding what I have seen in radial tonearm adjustments, I’d say there is *much* less probability that something is going really wrong. To do it really optimal it’s the usual old song... :-) And not different than any other analog setup.
(Typing this while listening to my Raspi3 Hifiberry Digi+ streamer...)