Let's put this thread to bed. Clearly I need to learn more about what
my system is doing.

Good news! I just finished a PEMPro backlash analysis, and the triangle wave looks perfect -- no flat tops and no overshoot.

So there is no need for me to set any backlash compensation in MaxIm or in the ASCOM driver.

I'm very pleased. My old 1200 is still at the top of its game.

--- Mike