With the return of my STXL from repair I decided to reshoot all the data I had collected for my M20 image. Also I have removed the TS Optics flattener which was not working as it should. So there is some slight field curvature but for now I am going to live with it and just crop what I need to make the image look ok.
The AOX makes a huge difference to how tight the data sets can be. I am still not convinced that I have got the bump settings right yet but this is more promising I think.
This set is:
Ha = 210 minutes
Lum = 120 minutes
Click here for large resolution image