I did not read what Valin wrote, but if he likes the TW Acustik more than the Walker, that will be good for TW's sales.
As for your comment that the Walker arm kills the Phantom, I don't know if that is true and probably no way to test. The Walker arm only works on a Walker turntable and the Walker table will not accommodate a Phantom :^).
Or is Valin due to give back or sell his permanent loan and he is looking for another :-)
Unknown, I am not close to Valin. It's not by choice, I just don't know him well enough to have "inside" knowledge.
When I spoke to the owner of TW Acustik at the show, he had several tonearms mounted, including a Phantom, a Tri-Planar and something else (I don't remember). I ask what he liked best and he said "The Phantom, with Air Tight PC-1"
I certainly agree with him on the Air Tight PC-1, I have two of them now and no Koetsu. If you know how crazy I was about Koetsu you know how big a change that was. I also gave the PC-1 product of the year award at PFO where I review.
I did not get these as "samples" or reviewer freebees :^). I bought them at a reduced price, but no better than clever audiophiles and dealers get.