I've googled what you've referenced but no joy for my skills. Do you have any cites or am I on my own here?There's a long thread on Pistol Forum about it. It also referenced that again, just like I've said, the first 2 rounds put bad guy out of fight and then he basically did the crab walk back to the restroom, getting shot the entire time.
The thread also included a link to Mike Pannone's kinda sorta rant about Dicken Drills, which I enjoyed.