From what I have seen and owned (3913, 6906 and 5906) there isn't. I guess I am comming a little late to the party but these 3rd gen Smiths are very good. They are accurate enough, 100% reliable and made well. They also have features that show that money was spent on them. But the best part is, they can be had for a song if you buy used.
BTW, I don't include the SIGMA as a 3rd gen. I don't know what that is called but by 3rd gen I am talking about the steel and alloy framed pistols not the 1911s or plastic guns.
BTW, I don't include the SIGMA as a 3rd gen. I don't know what that is called but by 3rd gen I am talking about the steel and alloy framed pistols not the 1911s or plastic guns.