2. Most shooters I have observed will instinctively rack the slide after it closes and will eject a round from the chamber, especially if they have been trained to "slingshot" the slide rather than use the slide stop.
That's why it's called the
slide stop, or
slide lock-back lever, and not the
reload button. Grab the slide over the top, or slingshot it to load/re-load, either way is correct. The slide-stop lever is just for that - stopping the slide in the rearward position.
