You really do have some nice data Peter. I just wish now we'd spent a bit less time on software and sucked down some more photons. Hope you don't mind me posting my first effort of the data here too. Discovering rapidly how clueless I am in the NB universe
(but determined to revisit and try variations)
Never dreamt in my wildest dreams I'd ever be glimsing this far into this old supernova remnant. It really does stand up incredibly well against world class images from big scopes taken last decade
http://messier.seds.org/more/m001_more.html