George - I have figured out a way to show why one should work in a wider-gamut workspace than the screen can display. This will be of general interest to other users, so I am planning to start a new thread with the explanation and accompanying diagrams. Unfortunately, I am going to be a bit busy this morning and tomorrow, so can't guarantee when I will post it, but is should be in the next day or two. I will PM you when I have done so.
Manfred, perhaps you could, in this thread, post a link to the new thread once you've created it? I've found the discussion interesting and don't want to miss its continuation.
Manfred,
You didn't forgot us?
George
Okay - finally done. Hopefully it will make sense to the readers.
Here is the link to the new thread:
Why one should use a wide colour space when editing images on a narrow gamut screen