That you want to stick with one operating system is very commendable. In the real world, you won't be able to think too well. Program good stuff into muscle memory and you actions will probably be correct.
I happen to very much enjoy carrying my Kahr P9 as it is light and flat. It also has a similar MOA to Glocks. Of course, the magazines won't interchange. Both Kahrs and Glock are point-and-shoot. I would also recommend that if you carry a 1911, consider a similar second gun.
Int'l Assoc. of Law Enforcement Firearms Instructors