As for flying in this WW2 simulation / game, I would figure prob about the top 20% or so of the better sticks will sometimes manage their throttle input........
1 reason being we have had many more years of learning to figure out what can be accomplished plus all the different write-ups and articles regarding such...
I would say the reason it was like this back in WW2 was from not having the extra years of experience, knowing that going up full power, coming down in a rolling scissors, maybe less power to keep from over speeding......( or vice versa, all depends on the fight and how it is playing out )
in WW2 did they even know what a rolling scissors was? I am sure they ( some had experienced it ) but the maneuver had not been termed that, as for some other maneuvers the same can be said.......as time progressed to this day people have experimented and picked up on what things can be accomplished to improve one's fight, to better their angles for setting up a solution......
there will always be natural dogfighter pilots, then the ones who study to learn and become better, then the avergae, then the mediocre, to the ones who never get it......in these groups each individual has a different timespan in which they eventually learn the essentials, then the more / most common concepts of dog fighting, then the advanced where the heck did that come from/how did he do that or pull that off uber chit.......
as for back in the 30's/40's they did not have the time available to figure all this stuff out.......my theory anyhows.......
to add: most times when I am holding the winning hand, prob will not touch throttle, but if I am at a disadvantage or fending off an attack, trying to even the fight out , then yes I will be working the throttle.....