A simple enough test would be to run a PEC with PEMPro, run a PEC with TheSkyX and just compare the two curves after applying each curve to the mount. They wouldn't be identical, but they should certainly be similar in phase and in major corrections! If PEMPro gives a good result and TSX doesn't my strong guess is that the phase is simply shifted to an incorrect position.
If there is a difference this could be demonstrated to Software Bisque. It should be conclusive. I'd do it but I'm currently not able to set up my gear as I'm completing a new home build. When the home is completed should I not be completely broke (!) I will start on the new observatory where it is nice and dark.
Peter
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