Yes, the CW is equally reliable for SD. I have both, along with a CW45. (Hey, I like Kahr.) Yep, the PM can be pocket carried, but other than that.....6 of 1 and 1/2 dozen of another. Accuracy-wise, my PM9 shoots tighter than the CW, but I shoot the CW45 better than either of those. If you are leaning towards the CW9 then you should consider the CW45. It's only a little heavier.....and it's a .45.....and it's $200 less than the PM.
So, how's that for a little different angle and more confusion?