Hi Jeff,
Found that if I 'push' things too far start getting bad noise in sky.
Yes, it can be overdone

Strictly speaking what you see it not noise but exaggerated small patches with variations in tone that are already in the image. I found that keeping Sel Col changes to no more than really necessary, TTS sharpen Except blue sky and using the Shadow NR tool in the editor, a reasonable result can be obtained. Even the over the top example I showed looked fine when printed at A4.
My point wrt B&W, was to show another way Sel Col can be used.
Terry
Hello Terry
I have had another session, and thanks to your suggestion to start from a desaturated rendition I am getting the hang of Sel-Col and B & W. done a test print and it came out quite well on draft paper.
The Ultimate sel col enhancements with this version are a great update.
Have now made a MO note to aid memory (I forgot the initial desaturate and could not reproduce my first undocumented effort) and had to go to tech corner and reread your post.
Thanks
Jeff