Ok, again some good replies
Merlin is the closest so far
However for those that do, PeteH, We've never thought about it (plus my writing stylee is more from my Jurno days in cars not Proper mags

)
We have accquired a lot of info, wading throught it, compling it and sorting would take a while, but would we wish to share it?, humm not down to me that one, also If we don't then some will cry Bull, if we do, some will agree others will say bull also.
Quietish life for me (at the moment) thanks have enough to do.
It's all about corralation of data, and some items we've discovered, bear no relation to the accepted practices.
Just one other point, we don't just build cables for the audio industry, areospace also, and totally minimimising interferance between delicate & crucial F.B.W. avionics system, and trust me you don't want ANY interfernace telling your artifical horizon/H.U.D. your 45 degrees off your plotted coarse hitting mach 1.2 in a battlefield situation do you? I wouldn't
The other point apart from (cables are bull), are the pricing structure, I will agree whole heartly that an awful lot are plain rude in price without question, we do study other cables which we have to purchase, (even at trade it's still some what ££$£$$),
However Proper R & D costs time and money, if the results are there, then this has to be factored intro the final price, however thinking of a number then doubling it, and adding 2 noughts, is not the way it's done.
As far as I'm aware, My ears are flesh coloured and not golden, the differencies that we hear are not imagined (sorry to break the bubble here).
I will also say, everyone hears different, and 'suggestion planting' as bub stated is prefectly feesable, although our customers might say other wise.
all points are valid, some guys can't/don't hear a difference, thats cool also, it's done to the said indivdual at the end of the day, regardless if the company has a huge sales structure or marketing budget