N1, not guilty of asking you questions but I do like your maths!
I know my maid is clever...she makes no mistakes doing my amendments! She has been debriefing me on the subtle and esoteric differences between PM and PNF. But she still can't explain to me why PF is not called PNM (pilot not monitoring).
In the meantime N1 I am sure there is a Greenies forum or something for you. I dont log onto PPRUNE to read about how unfortunate people are in this part of the world.