I have to disagree. A pilot well versed in ACMs can cut the corner on a better turning plane. A high or low yoyo is a good example of this. Now if we're talking about flat turning with a 202, A6M, or a Brewster...sure they'll win everytime. Knowing WHEN and HOW to turn against a better turning plane is key here I think. Knowing when to disengage BEFORE you lose the advantage and good gunnery skills are also a big factor.