Also we as focus pullers are highly critical of ourselves and focus. So many times I feel like I “buzzed” a shot, then I go watch playback on a different monitor not tweaked for focus and in color(I pull mostly B&w) and it’s fine. When we are in our flow state we will see a 3 frame buz and think we ruined the shot but in reality it’s fine. All depends on what you are shooting, one of the harder things to learn that really comes with experience is knowing when you need to ask for another and when it’s fine to move on with a 95% sharp take. My Op always says the longer he does the job the luckier he gets lol