Are manufacturer AC cables good enough?

What a silly goose. You can’t prove a negative. It’s like UFOs. You can’t PROVE they don’t exist. You may have a gut feeling, even a very strong gut feeling. But that’s not scientific, is it? That is what they call pseudo skepticism.

I didn’t make your totally UNSUBSTANTIATED statements!     It’s your ilk, that incessantly demands, "EVIDENCE."    You’ve made a number of claims.     Now- back them up, with something!

I thought I really liked my cables and cords...do I have to measure them on that $11,000 machine like Gene's to make sure I like them? that's way more than my cables cost...

I made the claim that SR and others claim to do double blind tests but none of them to my knowledge had done a properly administered double blind test in public, i.e. one where the process and results could be verified and validated by others. SR I am quite sure never has. Ted (due to his public persona) has been challenged to do it many times. He has never followed through.

"...even a very strong gut feeling......That is what they call pseudo skepticism."

No, that is what they call diarrhea.