My strategy comes mostly from the 1.6 era, and you are right that at the time it was mostly a matter of stopping to move, crouch and headshot.
I guess you can learn how to anticipate the deviation as long as it's static and dependent on your movement speed (e.g. not random), but that's still good right? It's a skill thing, not a luck one.
stopping and crouching make sense, however the mechanic is exploited in a way that doesn't make sense.
you basically move forward and if you see something you want to shoot, you move backward for a fraction of a second. that will cancel the forward acceleration vector much faster.
also another strategy is to find a place covered by a wall, and move left/right quickly. when moving from left to right, there will be a point when the acceleration vector is 0, and that is the moment to shoot.
I guess you can learn how to anticipate the deviation as long as it's static and dependent on your movement speed (e.g. not random), but that's still good right? It's a skill thing, not a luck one.