I got a thread in this sub-forum on the matter that addresses some of the questions that you're asking about. I also have the Cardas Golden Reference Power cord and Neutral Reference Interconnects. I agree with Mr. George Cardas' philosophy in terms of cable design as well.
Sometime next week I should be receiving my new Blue Jeans Cable stereo analog unbalanced RCA cables using Belden 1505F cable and Canare RCAP connectors. As I have said before on this matter, it really does not make much of a difference at all except when one has indeed created a high end and high resolution reference system first and foremost and the differences invariably gravitate toward prestige and preferences. I find it curious that people use hyperbole to describe the differences between cables when the science does not merit such language. However, I am open minded on the issue. My experience is that cables -- speaker, interconnects, power, and speciality ones -- make little or no difference in terms of sonic improvements (or detriments) unless the reference system is already at hand. Truly, in my humble opinion, these tweaks represent not just the last 2 - 3 percent but the last 0.75 percent. On the other hand, one can not dispute that human beings are drawn to prestige factor and have their own proclivities for all manner of things and high fidelity audio is no exception whatsoever.
System synergy through cables is indeed possible if it meets personal preferences, but I dispute the magnitude with which language is constructed to reconstruct the high fidelity sonic experience through the usage of very esoteric and expensive cables. It is entirely possible to achieve a musically satisfying reference system without resorting to the usage of very very expensive cables by simply prioritizing quality materials and construction over name brand and snake oil claims that are paraded through advertising literature.
I know this is a controversial issue and that I am not making it go away with my reply post, but the truth must be told and repeatedly if it is to be accepted. I will update my thread on the comparisons between my Cardas cables and my new Blue Jeans Cables next week when time permits. Lastly, I don't believe that cable burn in is a real scientific process and that a cable should sound just about the same whether it has just been plugged into a component or not used for a year. Conversly, I must qualify that statement by saying that you can easily become accustomed to a particular reference sound -- your very own absolute sound as it were -- and that switching components will indeed motivate you to perceive differences in the sound. That is indisputate and a human phenomenon.