Oh dear, oh dear, oh dear!
I cringe when I read this sort of scary stuff:
Boeing is not the GOD, and its procedure is not the Bible,at least we may give it some good supplementary idea--and that's why we have so many company's policy.
and further, equally scary:
but normally most pilots in our company like to use flap 5.
Boeing (Airbus) SOPs good; invariably, Chief Pilot's, Ops Director, Chief Trng Cpt's versions, BAD!!!!!! VERY BAD!!!! and AWFUL!!!!!
If it's not broken, don't fix it springs to mind.