I must not be sensitive enough to feel the difference. My M&P 40 FS manages to put 'em in the 10-ring and when I fired a 40 Pro, it did the same as long as I did my part. I alternately CCW my M&P and a 4" 1911A1. Betweeen the two, there's definitely a difference in trigger "feel", but there should be in a 1911. It's your weapon, do what you want as long as you keep shooting!