I think tex, we're on different roads going to the same destination.
Results at Ft. Hood had an LEO that was shot but not incapacitated return fire and incapacitate the shooter. Hasan survived, but was not able to continue shooting. Thankfully.
I bet my life on top-shelf ammo, based on documented shootings,and ballistic research and data, but the ammo won't matter without training, shot placement, and a thousand other variables.
My CCW instructor in NC, was/is retired NYC Police, he mentioned a BG shot point blank in the center chest with a .357 Magnum JHP's, get up, charge again, and wrestle with 4 officers before being handcuffed.
He died 20 minutes later. But when he got back up and charged again, he was not incapacitated. .357 has a 96% one shot stop probability, but like statistics, you can only read so much into them.