Dear @lewm : First I don't need another tonearm, second I don't need it to own the VIV to have some kind of explanation(s).
Your " I like it " along all the other owners is not really an issue but your observations as the other owners about just told me ( common sense ) that levels over 10% of THD in a room system has not really a discernible " problem ". As a fact speakers several times goes higher than 10% and in the vintage years tube electronics were just " there " and everybody happy.
All those just told me too that we are not measuring the rigth paRAMETERS FOR THE TONEARM HIGH CARTRIDGE ERROR DISTORTION LEVELS.
We are accustomed for the inherent way high " natural " tracking distortion that we can't avoid and we " like it " so another kind of tracking distortion is welcomed for you and the other owners and I'm still posting here looking for your explanations because was you who posted here about.
@mijostyn , no matters what the tonearm design ( no matters which kind of design. ) that tonearm can't makes to avoid the inherent tracking distortion in the analog playback media.
Not only you but I'm sure no one really can tell in very precise way a tonearm with 0° tracking error against other tonearm with 1.3° tracking error. NO ONE ( everything the same ).
R.