Hi Ron,
Thanks for looking at the log. Your analysis is very valuable.
I have always recalibrated after a flip but have never had this oscillation issue afterwards. I don't want to over-react about this as it has only happened on the one night. I will just monitor the situation once the weather improves and I can get out under clear skies. It may be just a one off issue related to the failed calibration. I was not monitoring the re-calibration in real time but I will when I retest. If it appears to be a persistent issue I will start another thread as it now appears different to Max's problem.
Cheers,

Mike

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