I can see how that can happen with a bob-tailed grip in theory. I haven't noticed it myself, though. I have both straight-gripped 1911's and the bob-tailed S&W 1911 SC-e pictured below, which is one of my favorite carry guns in my fleet. That being said, I don't do much rapid fire, so I never really noticed a difference, but now that the issue has been raised, I'm going to be looking for it the next time I shoot them side-by-side....