Numerous folks here have switched from irons to red dots, usually giving as the reason something along the lines of "I can't see my sights as well as I used to." Okay, at 68 I can relate to that, but it's kinda vague. Is there a better-defined line that, when crossed, indicates unambiguously that, "Hey dumbass, it's time!"?
I'm a decent, though not wonderful, shooter. When the new FBI qual came out earlier this year, I shot it using an IDPA target and had three rounds outside the -0, with all shots well within time limits. I realize that's a relatively low bar considering the skill level of some of the folks on this forum, but I'm not sure how much a red dot might have helped.
Data and/or personal experiences would be greatly appreciated.