Hi Ray, thank you for your very fast responses. So if I might ask another follow-on: If I install APCC, and call
the telescope from either CDC or SGPro, does it call APCC then versus the V2 driver directly?

No, ASCOM clients always call the AP V2 driver, which can start APCC if it is not already started, then the driver connects to APCC.

Your comment about RA rate correction intrigues me. I didn't realize I needed APCC to be running to get good results.

Just running APCC Pro initially won't make a difference in pointing and tracking rate performance. You will need to run APPM to gather data points throughout the sky via plate solving. Once the data points have been accumulated APCC can create a pointing and tracking rate model. Then you will see improvements in tracking and pointing. How much improvement depends on the repeatability and how well the pointing model terms model the telescope and camera setup that you are using.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Terri Zittritsch
Sent: Sunday, March 8, 2020 9:24 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Notified!😍 #mach2gto #mach2gto

Hi Ray, thank you for your very fast responses. So if I might ask another follow-on: If I install APCC, and call
the telescope from either CDC or SGPro, does it call APCC then versus the V2 driver directly? Your comment
about RA rate correction intrigues me. I didn't realize I needed APCC to be running to get good results. I've kept
my logs from last night, but it wasn't entirely what I expected. I polar aligned as close as I ever do with polemaster,
and put the PHD2 settings so I wouldn't chase-the-seeing as they say. I did turn off guiding at one point and ran
the phd tool to evaluate drift. There was more than I expected on RA. Is this because I'm not running APCC?
Here is where my lack of experience with AP products fails me.
Maybe I need to bite the bullet and install APCC.

T