I suspect a lot of folks don’t find differences between expensive high end cables and modestly priced or even cheap cables but that doesn’t mean there aren’t any differences, perhaps even big differences. It just could mean the experiment was flawed somehow or the system didn’t reveal the differences or the listeners were not as skilled at detecting differences as they perhaps believe or that there was a problem somewhere in the system. Or the cables were not installed in the right direction. No offense to anyone intended. Certainly differences would be expected to be smaller if the cables were not broken in or the cables under test were unplugged and plugged back in without sufficient time for the electro-mechanical interface to get properly reestablished. That’s why it’s sometimes a good idea to take any test results with a grain of salt or even throw them out, often they’re just outliers. That's also why The Amazing Randi feels quite secure offering $1 Million dollars to any senior audiophile who can hear the difference between expensive high end cables and Monster Cable in controlled blind tests.