The amount and intensity of stick stirring required to trigger the "DMYCSR" in the game would in real life probably kill the pilot of the plane by smashing his head through cockpit glass on both sides (with a bit of exaggeration, that is).
In other words, you can maneuver plenty enough as it is, and the odds are if the pilot behind you still can knock you down with the maneuvering threshold allowed in the game, the chances are no amount of more jinking would save you anyway. Jinking like mad is a last of the last ditch maneuvering, with the probability of survival being already way low.
Not to mention that with the exception of the Fw190s or the P-38L at high speeds, the amount of jinking that would trigger the DMYCSR wouldn't have any kind of evasive effect anyway since the planes don't roll fast enough to respond to such short inputs - at best the plane would shake around at a steady flight path. Without the DMYCSR, however, the pilot can induce a very warpy, bizarre movement of the plane that would in real life never happen in the first place. In other words, jinking like mad doesn't allow you to survive because it makes unpredictable (yet realistic and explicable) movements, but rather increases your chance of survival by making the plane appear to be something that neither can ever be seen nor have any kind of evasive effect in real life.
To sum it up, the reason people are shot down is not because the DMYCSR is under work. They are shot down because they already lost the fight and allowed the enemy plane to get behind them and saddle up.
If the DMYCSR constantly inhibits your movement so as to become problematic, its either you are at an inexcusably faulty and unrealistic frenzied movement with your controls, or a hardware problem. During all my years with AH MA, the times I've been bothered by the DMYCSR would be less than 10 accounts total. Its basically a non issue in most cases, and if somebody is having problems with it, my guess is that its the player that is wrong, not the DMYCSR system that is to blame.