Are people using optics with auto adjustment, or are you using manual adjustments?
If auto, does your optic to respond well to transitional lighting and flashlight use in dark environments?
If manual, how do you manage the settings over the wide variety of lighting conditions from bright daylight to possible flashlight use in the dark? Do you keep it at a default setting 24/7, or are you somehow adjusting it to accommodate changing conditions on the fly?
For either approach, are there conditions where you automatically go straight to the irons because you know preemptively the dot will not be visible? If so, do you develop a feel for where this going to happen so that it becomes predictable and intuitive? Or does it take many thousands of reps of "WTF!!" and it still surprises you from time to time?