I'm not sure you realize that my result confirms two things that Jared was asking about. 1) Does the mount really miss where it is aiming for - based on its own encoders? Yes it does. Chris's Conform test shows the same thing - and they miss by a consistent and fairly precise amount. 2) If you aim a bit off from the target can you compensate for this component of the error? Yes - you can.
I'm not sure if Jared's code change includes a log line showing where the mount thinks it landed after a slew - but that would be good info.
But yes I would be happy to see actual results under the sky with different mounts. Some mounts like mine will - I hope - center more accurately with this change. Other mounts should - I hope - continue to center well, as before - but without a sync.
What has dragged this thread down are non-constructive and negative predictions that it simply won't work - for some reason. I have been responding to them because I think they create a false impression of the concept here. But at this point it would be nice to see some tests - which I still cannot do yet.
Frank