Ash the police went with 40cal as it is a better stopper than 9mm.

The Glock was designed as a combat handgun with reliability as its foremost feature, as such it's trigger is great. As a competition gun the trigger needs work. I'll stay with the factory trigger. Also if you only let the trigger out to the reset notch-when you hear and feel a click- then the trigger is very light and requires very little movement.