Thanks for your insight, Jack. To be fair, the article was written in the early 1980's, IIRC, back when (as you stated) the HPs weren't as reliable as they are today. I think he may have done some testing on ballistic gel, hence the 'tumbling in flesh' statement. I might even still have the article somewhere; if I get a chance, I'll look for it.
I did find that my favorite factory load (Remington +P 158 grain SWC-HP) shoots pretty close to POA with my Vaquero, so that load will most likely be on the gun belt. Shoots to POA in my Detective special as well!
Two things I did learn this past weekend: My 'fast draw' ain't so fast, and it's a lot easier to hit a man sized sillouette at 15 yards in the movies than it is for real when trying a fast draw.