I wonder how the camera horizon gets determined. I've watched quite a few videos where the reviewers have the thing pointing in all directions while it powers on.
I'm in the same boat - flat surface, power on, gimbal auto calibration dance...
You do realise that you don't have to use the 100/48/50 MP settings for the cameras.
They also have 25/12/12 MP resolutions available too.
Have you looked into the image quality for those?