This is great! I will post what I hear when the Viablue comes in, and am very interested in what you find out with those 4 cables you have. I am still amazed by all the members that insist there is no difference in CAT cables. I also installed an Etheregen switch several months back and it made a big difference. I also fed the Etheregen a fiber feed from my source and compared it to the standard CAT wire feed from the same source(I disconnected each when listening to the other) and could hear NO difference, which I think means the Etheregen moat concept works. The fiberoptic feed test was a pretty expensive test, but at least I don't question that link.