I currently have a PM40 that I'm putting through its paces. I bought it used and put 100 rounds through it and had to send it back due to FTB. It happened about 10-15 times out of 100 rounds. Got it back and put 100 rounds of 165 WWB through it. It was 100% and boy was I happy. Then I put 50 rounds of 180 CCI Blazer Brass and had about 10 FTBs. Usually the last two in every mag.
So I'm going to put some WWB and Remington 165s through it to see if it is a real problem or it just doesn't like the taste of CCI Blazer. And I have 100 rounds of 165 Fed Hydrashok on the way and I'll test 50. Hopefully it will be just a diet problem.
If it isn't, I might be considering trading the PM40 in for a MK9 or MK40. I don't find recoil to be a big problem but I like the 9mm's extra round. For those of you that have/carry the MK series, how heavy does the gun actually feel? Is it comfortable to pocket carry the Kahr MKs. It weighs more than most steel Snub nose .38s and they already feel too heavy for pocket carry. Loaded they will weigh about the same as the Glock 26 I had and it really felt like a brick in my pocket.