... vowing to myself that it would be my last upgrade, but then ran across this thread:
And it sobered me up. I am going to save whatever money I might have spent on whatever self-rationalizing cable I might have purchased and devote it to improving some active component further up the ladder in the audio source chain.
Here's my take. Cables can make a difference, but only some, invariably silver, and not necessarily the ones most mentioned. I remember a thread in which a guy said he listened extensively to 10 popular cables and only two made any noticeable difference. One was the Headphile Blacksilver and the other I can't remember, but it was dearer. According to him the expensive cables like Zu Mobius, Cardas etc made no difference, which would explain why there are so many skeptics as these are the cables most people buy first to try. Even the Headphonia test you cite remarks that the Blacksilver made the most difference. Conclusion? Don't have a conclusion as to what you should do, but I do believe the Blacksilver is the one all skeptics should try.