Great idea for a thread Bonzo. I've been asked if I am considering a linear tracking arm for my new table. I look forward to hearing more videos.
This first video sounds a bit flat to me. Great music and I like the detail and tone on leading edge and sustain, good body, but the decay and harmonics sound somewhat truncated to me, less than full resolution of the entire note. Perhaps it is a really dry acoustic setting or something, but there is no sense of presence or dimension or mass of the violin, or the space in which it is being played, unless it is in a damped booth. This is what I think of as detail but not resolution. Lacks a bit of life. I listen primarily for balance and information from videos. This lacks a bit of both, IMO. Hard to know why.
Do you have another recording on the same system? The only LT arm I have heard is on the Walker table. I liked it.