Keep in mind, what do you consider acceptable for your application?
If your track doesn't tech, you can charge up higher than 8.44 without issue.
If your track does tech, where does being off matter? If the cutoff is 8.44 and you are at 8.43, should you change it? How about at 8.38? At 8.29?
If you are running mod, it doesn't matter. If you are running 17.5 or 21.5, it might matter a lot. If your running 1s, it's a crisis.