I am the owner of a Shield 9mm and a Shield .45 which I just shot today. I shot 50 rounds of Remington 230 grain H.P. through it and all I can say is this thing is a *****cat. The trigger is vastly improved and the new grips flat work. I shoot it he best of my 3 single stacks. Rapid double taps are a breeze. If you have to rent or borrow one of each and shoot them to see what you shoot best. Don't assume the .45 will be hard to control until yo try one.