1. Ensure mirror pointing to correct place to see propeller.
Happily, I can see my prop by just looking up high over my shoulder,
, perhaps Jim59 would tell us which airplane these interesting instructions apply to!
metal bladed engines were harder to air start than wooden bladed ones.
For my experience, it's actually the other way around, metal props have more helpful inertia once you get them turning at all.
If you wish to restart a `stopped` prop in flight,by diving,is it better to open the throttle fully,or keep it closed...
In the absence of a flight manual procedure, I would choose an idle throttle setting, particularly if it's a constant speed prop. You would not like to induce an overspeed when it begins to run, particularly if you're already diving!