Bit of an experiment..
Processed the best six out of nine three minute captures for the night. Identical workflow settings in AS!2, Astra Image and ACDSee (1200 frame drizzle stack, 8 apts).
Interestingly AutoStakkert analysed 17:54 avi as being the best in quality followed by 17:57, 17:44, 17:50, 18:00 and 17:47 files. I actually think 17:44 image has the best contrast / detail around the north polar cap.
I've combined these into 15 minute animations here
http://astrob.in/full/75321/0/ (colour)
http://astrob.in/full/75322/0/ (monochrome)
Thanks for looking,
Seb