Nice to hear it’s OK so far. Logs from the Celestron driver would be nice, if only to confirm that it’s recognising the new mounts correctly. No problem with waiting until you have clear skies.
Just to confirm, if you are using a NexStar+ HC you can set the pointing state but if you are using a StarSense HC you can’t. Both can read the pointing state, which SGP need to be able to do flips. The difference is that with StarSense you can only do a pier flip after the mount has crossed the meridian.