I guess this is all pretty much a moot point for me. My position is that there is no compelling reason to shoot +P loads in a .38 Special EXCEPT during a HD/SD situation. So, regular pressure .38s are always my load for all range/practice/plinking use and I keep a box of +Ps available and load my revolvers with them when the guns are in the house or on my person. The handful, if any, +Ps fired in a true personal defense scenario would never hurt the guns and I'm not sure I'd care if they did.
But that's JMHO.