I don't advocate over revving but simply 'free' revving.

And its the same advice with any IC engine, when its new you do not labour it in the lowest gears but let it spin freely with a light load.

Getting it to start undoubtedly leads to the large prop/heavy flywheel thinking but what you really want is the fly wheel effect with less of the dynamic braking of the prop.

Overly large props do damage diesels, just ask the free flight boys for examples.