To the OP - Being that the 1911 has been around for well over a 100 years, the platform has pretty much reached it's engineering peak. I can't imagine after a century that there'd be any significant improvements that could affect the performance of the 1911. It all comes down to quality of materials and machining tolerances.
"Arms are the only true badge of liberty. The possession of arms is the distinction of a free man from a slave." - Andrew Fletcher, 1698
"You cannot invade the mainland United States. There would be a rifle behind each blade of grass." - Admiral Isoroku Yamamoto
"Among Other Evils Which Being Unarmed Brings You, It Causes You To Be Despised." - The Prince, Nicolo Machiavelli