Thanks all, it's great to get positive feedback on this one.
Paul: I was trying for detail with the 1x1 bin in the color channel. 2x2 binning from now on! 15 min subs also from now on, not 10.
Agree the image is a little soft, prob due to my efforts to remove the noise in color channels (lack of exposure time) This will be fixed next available opportunity
Cheers everyone!
Grahame.