After hearing about this from my buddy Victor, I decided to give it a shot and try to make this hack which is known to reduce felt recoil dramatically. Here’s the procedure : http://elmtreeforge.blogspot.com/2007/03/1911-firing-pin-stop-modification.html and the sticky thread on 1911 pistol forums : http://forum.m1911.org/showthread.php?t=13060&page=1
The hack is to basically use an oversized firing pin stop, (you can order this from EGW) and file a very small 45 degree bevel instead of a huge slope.
the one in the middle is the stock Kimber Firing stop(this is a series 80 version). The one on the right is my failed attempt at trying to get a straight parallel bevel. The one on the left is a Series 70 firing stop (which works on my Kimber) that I managed to get right.
The idea is that by having a small bevel, it contacts the hammer and creates extra tension so that the slide loses more energy as it moves back from recoil, thus reducing felt recoil. I have to try this out tomorrow to see if it works. If it does, I’m gonna shoot my WA State IDPA Championships with this installed 🙂