I disagree, at least with my 3rd Generation S&Ws. They were designed around the then standard 147gr LE round. When shooting 115gr rounds out of my 3913TSW, I found that I hit 4-5 inches low at 21 feet. 124gr brought that up by 3 inches, and I was spot on to point of aim with 147gr rounds, both FMJ and JHP. Until one of the Obama Ammo Scares, most 9mm was 147gr, with some 115gr rounds out there. For the past several years, 147gr was just about impossible to find. Now, it's made a reappearance. There is some 135gr that's not too bad and I will use 124gr for the range, but that's it. I sold off all of my 115gr range fodder because I found I had to change my point of aim for it to be at all accurate.
Other guns, other shooters, may have different experiences, but that is what I found.