I carried a 5” M&P PC 1.0 for years AIWB.
For concealment nothing since the grip is the same, comfort wise will be highly personal on if the 4.25” hits you in a better spot than the 5”. Theoretically the 4.25” would clear leather 15% faster but at your level and work you put in probably doesn’t matter.
Before I forget, can someone confirm, or reconfirm, that you can drop a 2.0 Core 4.25 upper on a 2.0 Compact lower?
To recap, I got the Core Wednesday, shot it Thursday and Friday, and took it to a match today. I really like to be a lot more prepared, but I enjoyed shooting the Core enough those two days of practice that I decided to wing it. First stage was screwed up, but I settled in, and shot it progressively stronger throughout the day. Ended up with a good match, 141 Alphas, 24 Charlies, 2 Deltas, and no mikes or no shoots. It was a delight to shoot, and it felt enough easier to shoot than my Glocks, that if nothing untoward develops, it is a no brainer upgrade for me. Here is my match video.
Likes pretty much everything in every caliber.
I’m just hoping to find one of these one day.
I added an over travel stop to my compact frame, and with the Wolff reduced striker spring it feels pretty much like the PC gun.
I take a pass on the tungsten guide rod though - tried it and felt it was too far the other direction regarding muzzle dip/rise
You can try mixing some apex springs/sear with the oem trigger shoe and see if you like that.
The forward set sear can only be used with the matching forward set trigger shoe though.