I identified early on this was a subjective review of changes. If you believe that all human perception is covered in the tests outlined on this site, ignore my comments. I think the tests are valuable in determining a well performing product, but my ears tell me there is more to it. Or as Grave puts it repeatedly, my experience is a selective placebo effect.
For the record, I don't disbelieve in the value of subjective evaluation. However, the only subjective evaluation I pay any attention to is my own. Yours, or anybody elses, is irrelevant to me. Subjective evaluation is, by definition, beyond discussion.