Hi Octopo
I love all the debates on mains cables, you will never never convince those who think that mains cable do not work, like some members on this site, they try to explain most good companys will do a 60 day money back scheme so you can try first.
I did a test some time ago with a £3000 silver R.A against some very cheap [by comparasan] mains cables and the clearer audio came out on top, with the chord a very close second, theres a couple on Ebay i am going to try some time, just out of interest, however you will not convince everyone, but me personally they do work.
Andy