Thanks Clive, Peter, Daniel,
I had another few tries with DSS and Neb.
It definately has colour in it but is so washed out.
Dialing in some saturation brings up the blue but shows up
just how bad the originals were.
The trade off in sensitivity and resolution between the
Mono DSI II and colour version definately shows up here
Good thing about the RAWS though is that I got rid of the
dark artifacts while dealing with them in Mono.
Once again...dealt with all dark subtraction in RAW FITS...
then reconstructed before stacking.
Thanks guys for the advice,
Steve