Hi Jim,

I knew that you will do an excellent job explaining the funcion. For sure, I understand now. It appears that we want to minimize the hysteris in pattern. Now, I have another question or comment. I wonder if this function is created to minimize the effect of some hysteresis already present in the system by introducing some amount of hysteresis in opposite direction. It won't be perfect at all points (ver good around center) but it is possible that the new technology using 2048 is so good that the effect of hysteresis in the control system becomes important.

With my best regards,

Vicente "Vince" Bortone