I like to do stuff with stuff that is not meant for that stuff. One thing I'm going to try out tomorrow night is stacking DSO with Autostakkert. Nominally people use AS for planetary and lunar, but set the correct options and it seems capable of stacking deep sky images as well. Write out the results in FITS format and post-process in APP or what have you just like anything else. If you have not captured with flats and darks AS supports generating and using them as well, including dark flat or bias calibrated flats (although I had some trouble with my flats from a lunar mosaic last night; the flats did not calibrate out properly. I think something in the image train may have moved or something).
One of the reasons I am attracted to this idea is that you can save the frames in a single .ser format video file in SharpCap and AS does a pretty good job of sorting frames and makes them easy to review by quality. I know from lunar imaging that the tracking and stacking are top notch. Another reason that I am drawn to it is that frankly the stacks look like the lights. Perhaps this is silly, but I cannot get over how DSS, for example, produces a stack that looks absolutely nothing like the lights. Drives me nuts. For what it's worth APP doesn't suffer from this problem either.
So, has anybody used AS for stacking DSO images? If so, how did it go? Any deficiencies? I assume there must be some, otherwise it would be more popularly used for this, yes? Or has it just been made obsolete for this use, like Registax for anything but wavelet sharpening (sorry Registax stackers)? I know that altaz mount users might have problems from field rotation, but my mounts are all eq.