Fencer's idea of "reduced throttle" in the DGS example is a few inches of manifold. They were still hauling arse faster than normal cruise speeds.
Oh, and Anaxo, bombers didn't fly at full power in WW2. They didn't do anything at full power except take off. Immediately after taking off they reduced power to climb settings and then when level even more to max cruise settings.
Quoted from somebody that flew the Collins Foundation B-17 and B-24:
"B-24 and B-17 both climb way to well in WB. When I was flying the Collings airplanes the B-17 would climb at around 800fpm, the B-24 6-700fpm. We never, I say again, NEVER saw climb rates over 1000fpm as you see quite often in WB. And with the airplanes I was flying we weren't hauling bombs and neither airplane was capable of hauling a wartime fuel load."
It's a WarBirds related comment but the real world example can also be held up to Aces High.
Max speed for the B-17G at 25,000 feet is 287, but cruising is 182. B-24J max is 290 at 25,000 ft and cruising is 215. That's TAS.
Fuel was life. Fuel was important. Fuel was more important than anything else because it kept the engines running (which kept the plane in the air). Any other issues could be overcome. With no engine you bailed, crashed, or died.
You think bombers crossed continents on full throttle? They'd never make it to the target, let alone back, with that kind of fuel consumption.
EDIT: The point is that fighters performed at full power almost every sortie. Bombers never did. The same issues (engine limitations) are lacking from both, but only yield totally unhistoric performance values in bombers in this game, so it only really affects bombers overall.