RockAndSage
WKR
5k ft DA changes can easily happen in a day, but you're right, it's not a make or break. Just another couple tenths of error. If you were already dealing with some error, it could put bump you out of the vitals. So maybe correcting within a day is a little over dramatic. But I personally have hunted 10k+ DA variations from one week to the next, so you might still be adjusting week to week.
DA and the ballistics calculations of all of this in precision rifle are still pretty foreign to me, I genuinely didn't/don't know how much it would need to be accounted for at 600yds and in, what causes changes in DA, etc.