The only double stack I own at this time is a Springfield xd9sc, I traded away my Sig & Glock because they were just to big and bulky. I don't carry the xd9sc anymore, it feels like a brick in my IWB holster. My Kahr mk9 & k40 are all I will carry now, the weight doesn't bother me at all. I will never carry a double stack again, just to much bulk compared to a single stack.My m&p 40c, I carried this every day untill I bought a pf9!!! It's still one of my favorites. But after carrying a single stack mag pouch, I won't hardly carry a double stack.