Ok Garyi,
I do understand the work thang 
First I'm not setting in stone, aboslution an all, thats not the case.
We manufacture all our own wire (in the UK), it's not brought in from Tiwain
.
It's our own 'Brew' if you like (we research and forumluated it, it's unique as far as we're aware).
There are many therories as to weather the draw wire has compressed grain structure, deformed boundaries, etc. as to weather this has a PROVEN effect on the sonic signature of the said material is a big a can of worms as, Salisbury an alternate universe ?.
All I can say is, we can and do detect differenices in the directionality, hence why we don't just start making them 'as they come' so to speak, our cables are multistranded, and are hand assembled. So if we doubled back the cable, would it not be going against the grain?
You'll say, are but no 2 brews are the same, true 100% consistancy is virtually impossible, too much x instead of y, and the mix is wrong, this could be the reason?, also too much pressure in the dies?, too high a temprature in the smelter?/furnace, impurities, yes all very valid.
I'll give you 2 main differenices we notice on digital cable directionality, out of focus/disjointed sound, very muddled, flip it around and it pops in so to speak, more cohesive.
I'm sure I'll get 30 broadsides for this post 
Buy hey, the world is made up of all sorts. T.