Similar ops with F.27's in Libya many years ago with an oil company.
All wet takeoffs, all the time.
Standard procedure was to switch W/M off before climb power (14,200rpm) set.
Suggested to the chief pilot that according to Fokker, this was not a good idea, performance wise.
He looked at me long and hard (probably thinking what does
this young wiseguy know)...and said, yep you're right, type out a new checklist.
Couldn't get out of the office for two weeks

as he found more for me to do as well.
Learned a
lot from these older guys.
Then, when flying with him a month later, he starts looking for ground fine at 50 feet on landing.
On taxi back he says...did I really do
that? On his desk a week later was a big note to himself...thou shalt NOT select G/F before landing.