Actually, your Pilot or FO Flight aptitude grade is in a little box on one of the many forms buried in your ATJ. (For those who aren't in the pipeline yet, that's the jacket which has all your grades in it for flight training, follows you through the pipeline, and is basically guarded like it contains nuclear launch codes) I only know this because I found it whilst flipping through mine in Student Control when I was bored. As for how many times I have been asked for mine since I took the test, zilch. So apparently it's important enough for an official record, but I don't think it'd be a factor short of a TRB (For those not in the pipeline, don't ask, that's a very bad thing).