I don't think that would ever happen. Main reason being, for example, if I give a recruit 10HV's with a B prestige in the 1st period. Then in between the 2 recruiting periods my prestige jumps to an A-, I would only get credit for having a B prestige up until that point. Once the second recruiting period starts, any actions after that point, then I would be credited with having an A- prestige, if that makes sense.