Well, i believe when the FM is fixed and we will fly in realistic heights of 7000m to 9000m to escort our bombers all the way to London,
we will have to cruise with max endurance-settings.
I think that when you then have to dive a few thousand meters to the hurris and spits which are attacking the bombers the possibility exists that the oil cools down too much as you have to dive without power so you dont overspeed.
Of course in the normal all-day-online reality one can leave them open as the fight is between 0m to 1500m and always full throttle as long as the engine holds out.
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