I have not used Critical Duty in 357, but have used the Critical Defense. It is my understanding that the Duty round was meant mainly for police use and is heavy on penetration for barriers. I don't feel that is a great idea for civilian use. The 357 Critical Defense has plenty of thump as you will see in this video:
https://www.youtube.com/watch?v=lTWFbuzX-l8
Thanks...not a fan of critical defense though