Thanks - yeah it one of my many stuffing around attempts I discovered the saturation button there.
And as you mention, there's scripts for combining data - just discovered those this afternoon. In my few attempts I didn't find the SHO-AIP one to be that useful.
I have to go back to Harry's site (btw, your link has an error in it) and watch some more videos.
This afternoon, I started working through this tutorial:
http://pixinsight.com.ar/en/info/pro...or-helmet.html I haven't completed it yet, but so far I've got an image with (mostly) better nebula but the stars are super-wrecked magenta and red.
The flow is mostly as per the tutorial up to just after the two MaskedScripts. After that, I messed around a bit (sat, etc) because I felt as if I'd gone off the rails (and dinner approaches).
