<p>The only main advantage to having AP credits is to register earlier and to pass out of classes. So if AP Calc wouldn’t get you out of any classes, the only advantage would be to have the credits to register earlier. However, that’d only be like a day, or even a few hours earlier to register. 28 credits would still give you one of the earliest Freshmen registration times. So yeah, nothing to really worry about. But still, do your best, and who knows, you may get a 4 or 5!</p>