I think we actually have a lot of common ground.
I agree.
We are, after all, talking about will, and maybe especially about using mindset to remove or avoiding hesitation. For me, "shooting to stop" doesn't raise the emotional and legal concerns that "shooting to kill" might, and it's more in line with what I think of as my intent. So, for me, less hesitation and more clarity of purpose.
That doesn't change the fact that shooting at someone can be, frequently is, and should always be expect to be lethal...
But shouldn't necessarly be expected to stop them, even if they've already recieved a fatal wound. Hence the practicing of maintained fire, which is another point of agreement.
Exactly how long do you intend to wait and watch what happens
For me, as long as it takes to put my sights back on the upright attacker. If he disappears from my sight picture, and I find him on the ground, then personally, I think I'm going to need to assess rather that shoot to slide lock.
Similarly, if I see in my sight picture these two long things extending from his shoulders to over his head--I think they're called arms
--I better assess that, too.