Hi Sevan, I am the guy with an UC22 Servocat / AN trying to start astrophoto with my dobson. Servocat is connected to the PC in USB (servocat 3) with one of the ASCOM servocat driver.
Regarding how AN/SC works together you are fully right when you say that you have to do the first two stars alignment with AN manually, BUT once this is done and 1:the PC/software is connected to servocat, with NINA in my case, 2: Argonovis catalog is switched to "from planetarium" slew works very well. I added to my scope a small finder scope with a zwo mono camera declared as the imaging camera in NINA and I can "slew and center" with platesolving to get my target dead center for visual observation.
The next step will be to reach focus with an imaging camera and start real astrophoto. I might change the Argonavis with Nexus DSC pro to avoid doing the initial two stars alignment which means removing the imaging camera and reinstalling it after.
CS, Fr¨¦d¨¦ric
Fr¨¦d¨¦ric Ruciak