As an IP, you’re always instructing/viewing performance through an IP lens, regardless if you’re writing a grade sheet that day. You should do the same as an evaluator, meaning you know how an individual is doing overall when they get to an eval. So, take the big pic approach and don’t be the douche who downgrades a guy on a mistake he just happened to make that specific flight. If you can’t take the big pic/is-it-a-trend approach, you’re a shitty SEFE. I hope this helps a young SEFE in the future be a good one.
To answer the original question, I’ve seen one Q3 and one Q2 in my entire fighter career…both are patches after the fact and one is a graduated SQ/CC. Downgrades happen occasionally, but are fairly rare.