In my onboard experiences with the A&M, I don't ever recall the dynamics being used. Why? Because not all engines are equipped with them, and of those that were equipped, some of them didn't work (Decommissioned).
I seriously thought about taking them out of the eng files, but that would have left an inaccurate cabview behind, so, I left them in. Sheesh...

...and now all you new hires are takin' the sissy's way out.
I personally find it far more fun to railroad the A&O using air only. However, to each his own.
Andre