Many have complained and I agree the SRT trigger on the M11A-1 is uncomfortable. It pinches the finger and is downright annoying.
Some have had it replaced with the standard "fat" trigger.
When I bought a new slide my my 2012 (good deal from a member here) build it came with an extra SRT.
So, I started thinking why not just grind the end off that puppy?
So I cranked up the grinding wheel and started taking it down to where it felt right, filed it down to remove any roughness and dabbed so Oxpho-blue and wallah. well not so fast, now I had to take out the SRT and install the modified one. I have never done a strip of the frame so after a You-Tube on a P227 I gave it a shot and I admit this is not for everyone but I am delighted to have got the gun back together
Pinch is gone, the pinch is gone, thank God almighty the pinch is gone
Before I mod the new M11A-1 I will call Sig and ask if doing the strip down and modding the SRT will void the warranty