Impressive result so far Paul. I like the composition in order to fit the key features in the fov. You could have told me it was 8hrs or 30hrs and I'd be none the wiser. There does come a point of diminishing returns whereby all mega data begins to offer is a greater choice on sub quality selection for inclusion in the combine. This in turn can make processing easier. Just don't loose site of the fact that its not always about how much data you acquire, its the quality of the data you acquire.
-Asymptote-
Back in 2009, AIC Hubble Award Lecturer Tony Hallas did a presentation of CCDnoise and the point of diminishing returns, aka Asymptote. You may want to check out the presentation.
http://www.aicccd.com/archive/aic200...s-ccdnoise.pdf - Note its 75Mb in size so download it before viewing. The presentation doesn't read well, you had to be there but I can tell you a few in the crowd were surprised including me.
I'm certainly not laughing at your mega data addiction. Did however get a chuckle out of your OIII attempt. Rule number one, research your target.
