I LOVE a nice DA trigger pull.
I actually shoot more consistently with a Revolver in DA that I do SA. (My groups seem to wander around on me.
I acutually used to use the NY trigger in my Glocks until my wife's complaining about it made me switch them back to stock.
In purely target shooting, a DA/SA trigger can be disconcerting. But in a draw and fire for your life drill, I don't even notice it.
If you pick an action type and train with it consistently, YOU will be consistent. Jumping from DA/SA to DAO to SA to Safe-Action etc will probably throw your "game" off more than the transition from DA/SA.
People really get hung up on some of Cooperisms, even when they aren't really true in real life.