Hi Dave.
That's very interesting. I managed to get to the Heathrow show and met Steve from Vertex. He did a very convincing demo using a stethoscope showing the effects of mechanical noise being transmitted through interconnets. He was in the Lyngdorf room which had a digital room corrected system wired with Vertex cables. Lyngdorf obviously take isolation very seriously as they were also using a Stillpoints ESS rack and component stand.
I must say that it was by far the best sound I have ever heard at a show. I stayed for a good hour and listened to a wide range of music and I would have liked to stay longer. How much influence the Vertex cables had on the over all sound is hard to say. Only downside is the look of the boxes on the cables. I know they are needed, but they could be a bit neater.
Have you tried the Vertex cables yet?