Again, thanks for taking the time to answer the questions I have stated, much appreciated. I think this may well be my interpretations - a little too literally on occasion. It's borne from trying to remove what I perceive as ambiguity in any given scenario and the various training manual resources, and come up with a safe answer. It also begs the question to me personally as to whether really to perhaps re-assess my chosen career-path, as I get older and as the years drift by I'm most certainly becoming 'dumber'! and that's not a good thing on a flight deck....