That's a pretty good read. A little LONG but worthy of reading nonetheless.
I've always said that I considered +P ammo to be a waste of time and money. I think a standard .38 Special load, especially in a "get off me gun" like the ever popular snubbie, is sufficient.
If I were still totin' a K frame on duty, I MIGHT stoke it with +P ammo. I dunno.
158gr SWCHP+P will work when others fail. For serious social encounters its whats for dinner for the BG that looks at me as his ticket to fame. For my 3913 I have Winchester Ranger 129gr +P+ for the same game. In my 4566 I have 230gr Hydra-shocks, even if it fails to expand its still .45cal.
I still have about 150rds of 158gr Nyclad HP for my J's also.