...both agreed that method 'C' (the one I have always used) is incorrect because the PNF cross check is redundant and slows down the checklist completion.
Never mind your collegue, its your checkie who needs a good
boot in the arse. It doesn't really matter what type of aircraft
it is, be it a nice Boeing or a damn Airbus, its assumed by the
manufacturers that pilots are professional enough to make
crosschecks as necessary without having to spell the whole
thing out in writing.
Airbus are by far the worst for making constant changes to its
FCOMS with piddling changes to words. The "Note" change to
the terrain avoidance procedure a few years ago being a good
example. But I guess they have to cater to the lowest common
denominators who are (grudgingly as far as I am concerned)
permitted in the cockpit.
Stick to method C bud, and who knows? The life you save may
be your own.
Is the AFM/FCOM the be-all and end-all of our procedures?
To Makeshift Pilot Licence holders and 200 hour kids yes. To
experienced professionals it certainly is not.
Read the preamble in the FCOMS.