My EDC is a PM9, unless the weather is really cold and I'm wearing a large coat then it's a TP9.
I also have a M&P 9 Full size and a M&P 9 Pro.
Why the 9c for range shooting? It's not all that much smaller than a 9 Full size.
Anyway, the PM9 has a much longer and cleaner trigger pull IMHO.
OK, wait, wait, I just pulled the triggers on all three a few times.
PM9, there is that first very short easy pull, take up. Then it gets harder and builds a little and then releases the striker.
M&P 9 Pro, has a much longer take up. Then it fires. It's not as smooth as the Kahr but way lighter.
M&P 9, Long light take up. Then the trigger pull is about the same as the PM9 I would say.
The PM9 has a very short take up and then a long even pull right. Both M&P 9s have a longer take up and when you start to feel pressue they just fire.
I shoot USPSA and IDPA with the M&P 9s. First I has the full size then I bought the Pro. Very sweet. But sure not for carry.
It it's not on fire,
It's a software problem.