I'm sure you didn't mean to say it that way but saying "we only want to prove that there are differences between cables" kind of implies that what you would like to prove is that there are differences which isn't approaching the test with an open mind  .

Rather than saying "we want to prove there are differences" it would be better to say "we want to find out if there are differences or not".

I'm sure the myth-busting day was enjoyable for all that attended and am disappointed I couldn't be there but it's hardly a suitable environment in which to run a proper test.

When we had a similar disussion a while back (really - did we?  ) there were quite a few constructive suggestions made, notably by Paul Ranson, about how to run a proper DBT.  I'll be the first to admit that there would be a lot of trouble and effort (and probably expense) involved and is it really worth it?  I'm inclined to say "no, just listen to some music" but it might be worthwhile if it would put an end to this internecine warfare we seem to be having every month

Michael.