THANKS ALL for your replies! With all of the permutations of OAL and CRIMP there still was a bit of resistance to rotation even below safe OAL's so today I packed up and went out to the range with a variety of OAL's (safe standards) and CRIMPS and fired away ~200 rounds and no issues with going bang or especially KABOOM(!).
I'M JUST NOT GOING TO WORRY ABOUT IT, GRIP REALLY, REALLY HARD, PULL THE TRIGGER...REPEAT...
Thanks again to you all for chiming in!