Hi,
I got round to processing Mondays images: -
(http://www.jumpers4goalposts.org.uk/images/Astronomy/Messier/m27_prime_june.jpg)
(http://www.jumpers4goalposts.org.uk/images/Astronomy/Messier/m51_middle_medium_june_14.jpg)
(http://www.jumpers4goalposts.org.uk/images/Astronomy/Messier/m57june.jpg)
Appart from M27, I' not to happy with the images because I seem to be bumping into saturation with the SAC8 a little, I think this is a dynamic range issue, but I'm going to persist, also I've given up with AV for stacking, these we're all done in Registax.
I'll try Iris next.