Well, Mark, the means is definitely relevant if for some reason you can't hear the result clearly. My point is that for some reason I could not understand clearly where the center was being moved, and the very relevant piece of information I asked was really helping me in figuring out what was going wrong. And since the UI had changed I had doubts about my understanding of it. So, thank you for the clarification.

As to your interesting lesson on logic and moral, means and results, I thank you but that was not relevant, really

Also, hoping to do something nice, I'll answer your guess: yes, in order to shift the the center of the stereo image to the left, you must delay the right channel versus the left one, which is the same as speeding up the left channel versus the right, obviously, but that was not at all the point.