Thanks Jeff. Nothing is obvious to me so lay it on
The seeing was coming and going from seeing features quite sharp at time to the whole disc bobbing about. I have about an hour of video in 3min chunks so will review other ser files. I started at 5.2m FL then increased to 7.2m afterwards. I can track really well at that FL so I capture a window cropped right around the disc at 90fps. I now realised that the IR filter is quite dark when doing flats so might try straight LUM next time see if I can increase frame rate and decrease gain. Camera is ASI120MM USB2.0 on latest FireCapture.
What do you think about processing? Ok or am I kidding myself and should dial it back? I get a little excited with the wavelet sliders. Probably coffee induced at 2:00am