I have written down details of my workflow if someone find it intersting.
http://www.astrofriend.eu/astronomy/...roduction.html
It's very interesting technique. I will now do test on my old astrophotos, they are all taken with Dithering and my normal preprocessing is always demosaicing.
Very surpised how fast DSS Drizzle the images. Earlier it could take several hours, now only minutes. Maybe it cheat :-)
/Lars