Looking at your grabs in post #44.
Your Cal problems are probably not due to the OAG, but due to the comments in the PHD2 message: PA, Dec Backlash etc.
Because in my experience at 1400mm FL, and other's, PHD2 will cope well with misshapen OAG guide stars.
Post the GuideLog.
The discrepancy in RA and Dec guide rates and backlash are artifacts of the guide star center of mass jumping all over the place due to the guide star being misshapen. I can see the little red crosshairs in the PHD2 display jumping every which way during calibration, causing it to think the star is moving in ways that it is not.
When I replace the EdgeHD with my Esprit 100 and ZWO OAG, I get near perfect calibrations with the same mount (and very similar payload weight).
Edited by Domer, 28 September 2022 - 12:51 PM.