You seems very convince by this. Last night I try comparing a pair of £50/m interconnects and the thin black/red freebe after given a challenge. I would say they should be some difference in this extreme example. However, if I was ask to pick it out without knowing which is which it becomes harder. In fact I could not. If you are able without out question tell them apart I assume it was distinguished in similar way? This a very the crucial point.

PS thanks to 'that prick' I still could not get the horrible thought out of my mind.