I've loaded a timelapse of my "unattended" imaging session last Saturday,
https://flic.kr/p/zSF2gS
and
here's what the 10" was doing on M74.
One basic mistake - I hadn't connected the secondary mirror dew-heater as it's no longer necessary this time of year, and the wire had unclipped from the secondary spider, so I earned an extra fat diffraction spike at 45 degrees to the usual from dangling cables.
Another thing I've noticed is that the meridan flip has caused a collimation shift, so the red channel (post-flip) is causing a few flares on stars.
Anyway - 10 minute subs, 8 for each channel in LRGB, QSI683wsg camera, losmandy G11.
Once I sort out these issues, this will be a great target to revisit with this scope!
Andrew.
Thanks for looking.