Control surface positions...
I'm not sure how the AI is modelled but in this pic the rudder and elevator positions are at max = instant violent stall.... Not so with the AI.
These positions are held throughout the turn.... Also

Doing a lot of crimea quickies... The Spit AI can do the most amazing turns and not black out, then while doing a mild turn just flies into the ground.
I'm beginning to enjoy pre-modded IL2 more