I gave up trying to hard.
My good friend was in the Army and had to line up some fire control system with 2 knobs for x and y. He was outside and the knob mover was inside.
He knew which knob was which knob and which way to turn each knob to get the desired results; of course this was almost never the case for the person that was assigned to turn the knobs.
His solution was to tell the inside person to turn ANY knob ANY direction. He could then see if the knob turned was the X or Y knob; without having to ask. He could then say, turn it N amount more, or turn it the other way. Then, say, turn the other knob ANY way. Then repeat the above.
Moral of the story:
Enter the number you think it should be. If it moves the wrong way, hit Cntrl+Z and change the sign the next time on the exact move.
I'm simply mentally prepared that X and Y directions learned in college has been fundamentally programmed into my brain (and I have not drank enough beer to kill those brain cells where that data is stored).