I wasn't on the fence on this one, I wasn't even in sight of the fence but once the question of differential hardening was answered I ran to the fence and dove over head first! I've kept my DFCG but sold my DFLE for performance reasons. I had sold my BR but I couldn't bring myself to dirty up my Satin BR so I picked up a user BR off of the exchange and I'm glad I did. The Bowie style of the M9 at 9" and 1/4" stock say that it is going to be a performer just like the DFCG and the BR so I'll keep the SBR in the safe and put the M9 to task.