re: Massad Ayoob makes a case for carrying with safety...

That can go both ways. In the old police academy textbook

Street Survivor : Tactics for Armed Encounters

there is a photo of a uniformed officer in the grocery store sprawled out with a gsw in the throat.
The caption below reads ,

“ this officer died because he was unfamiliar with an automatic “

The whole premise in training is

Repetition develops instinct , so, when the shtf, you automatically act without thinking. Same with those safeties.

We shot for weeks, every day. At the 2 yard mark, upon the bell tone, you will take one step back, draw and fire two rounds from ready gun, then step forward and reholster.

Over and over , every day for over a week.

Years later i realized why. They were developing instinct. Had a dude resist during handcuffing, reached and picked up his rifle from the ground. I realized that i automatically did the one step back and drew. Luckily for him, i noticed that his hands were not near the trigger area. He fled. Picked him up on an escape warrant next day.