Andy:
Thanks for the response. I have PHD2 connected via ASCOM to my rotator (Optec Gemini) and my mount (AP1100GTO). I thought SGP told PHD2 to "Reverse Dec Output" when it did the meridian flip. If not, then I must have PHD2 properly configured: Reverse Dec Output is unchecked and Reverse sign of angle is unchecked. The automatic meridian flips, which include camera rotation, work perfectly when doing a normal east to west meridian flip. Of course, the camera is doing a 180 degree rotation. When the reverse meridian flip occurred, the camera rotation was not 180 degrees since the new target was at a different rotator setting from the first target.
So, if PHD2 is making the dec reversal decision on its own, then it would have known that the OTA had moved back to the west side of the pier, pointing east and that the camera had been rotated to a new angle.
You have provided good information and I will get a chance to test this later this week. I will specifically test the "Reverse sign of angle" option, since I have never done that. I will also make sure to get the logs if it fails again while going to the second target.
Charlie