Yes, when in double action mode the DA/SA/Safe pistols will fire
But when you watch an newbie learning the weapon you often see them surprised because
1. They ususall train SA almost all the time, so why is it so hard to pull the trigger and why was the hammer forward
2. I am pulling the trigger and nothing is happening oops...on safe
3. Whoa...I wasn't ready...wasn't the pull supposed to be longer
4. My finger really hurts because every time I holster I need to decock and then engage the safety
And yes I have seen them when flustered on timed drills flipping that lever every which way trying to get it to do what they expect
In case I am being too subtle...nawww....I don;t think much of DA autos...and especially DA/SA/Safe autos
Strikes me as being both a belt and suspenders
"completely control my pistol's firing mode"
How many modes do you need?
Mostly the only mode I care about is
BANG
And my finger gives me perfect control