What happens more often ?Just so I understand, you would rather take a chance on something that you can not see possibly happening than something a quick visual can warn you could happen? No offense, but that is a pretty weak argument. If you had said you prefer the same trigger pull each time, that I could understand. I'll stick with doing my visual inspection before holstering my firearm, especially since I engage the safety before holstering, which in turn decocks the hammer.
Human error or a piece of manufactured metal in a firearm breaking?