[sneak]

If you can’t distinguish A from B reliably, none of the rest matters at all. The idea that you have to “figure out what to look for” is nonsense if you cannot distinguish the two reliably.

“Listening fatigue” when you know which is which is simply placebo.

[SomeoneFromCA]

You should probably read more attentively. I did not say you do not need double blind test.I said, once you learn what to look for, only that there is a point to do the blind test.