In the absence of common sense and experience talk to your chief pilot
Just because he has risen to the post of chief pilot does not mean he is an expert in engine handling. He will have his own personal ideas on engine handling and is in a position to insist his employees do what he says.
Every pilot has opinions on engine handling usually handed down from who ever checked him out.
The AFM and POH give the manufacturers recommendations. Stick to those publications. Finally, read the advice by John Deakin, the author of the "Pelican's Perch" His advice is gold. Google his name.