Went out to LOOK at guns today - trying to find a suitable carry weapon for my wife besides the somewhat wimpy .32 Beretta she's got. Wound up buying her a .380 FireStorm, but I digress.... Of course while in the shop, I get to talking to the owner about my M9. He carries an M40, and loves it. Then he says the magic words: "I have an S9 in the back". Shit. The minute I held it in my hand, I knew it'd be going home with me. The weight reduction from the M is perfect. To me, it makes the gun feel more balanced. Hot damn, it's comfortable - I really think I like it better than the M. So now I'm the proud owner of both an M9 and S9! Hooray for me!