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<p>This IS NOT true!! As soon as Pitt receives everything they need for your application (i.e. the application, SAT score, and transcript). It’s considered complete. You can try to add more to it (i.e. letters of rec, resume of activities) but trying to replace your SAT scores once the “complete package” has been forwarded to the admissions committee may not be possible. Like I said before, play it safe and wait for your new scores to come in before you submit stuff. The only thing the priority application does is give you a faster turnaround, nothing more.</p>