Hi,

I am sure that I have a very, very good polar alignment (extensive T-Point modeling, and no sign in guiding that there's any significant problem with polar alignment).

I am imaging three targets each night. The first target is ALWAYS about 20 arcminutes wrong with the first slew, then gets corrected (because I tell it to re-center when the error is significant). And, oddly (to me), when it takes the second hour on that target, it slews again, to about 20 arcminutes wrong (even though it was spot on a moment before; it does correct as I tell it to). For reference, I image with a scope with focal length of 3315mm, on a 16803 chip, so I have a FOV for that huge chip of about 38 minutes, so a 20-minute error is very significant. My mount is a Paramount ME.

The second target and the third target both are about 4 arcminute pointing error, so I'm not bothered.

Should I enable ACP Pointing Corrector? Or is there a way for ACP to sync with TheSkyX Pro to update the pointing model?

Not a big deal, but perplexing.

Thanks.

Mark