Engine start in fine pitch
Smitty, we used to start up with the props in fine pitch only because pitch locks were installed and it was used to bring immediate thrust up while on floats. You don't want to have foward lurch on a closely parked dock when you bring the prop out of feather....
Others may know more.... I just drove the "Dienst Pferd" (Work Horse)!
Cheers
6to8