The only thing I truly regret is somewhat lacking on the GMAT score.... I received a good score but nothing extraordinary, which is expected from business schools PhD applicants.
I regret studying way too hard for this test for way too long that resulted in a "burnout" and a lower score than i deserve
I hope that my research experience & interests, teaching experience LOR's, SOP and GPA will compensate for it. I will be very sad if I got rejected on the basis of the GMAT score because I really believe that this test is irrelevant for a PhD and does not test the competences required to be a great researcher.