I recently took the GMAT and received a very good score (750: 50Q, 41V). My Integrated Reasoning score, however, was quite low (4). I was surprised because I had received mostly 8s on the practice tests I had taken before the exam. Is it worth retaking the exam just to improve my IR score, or is it not worth the risk of receiving a lower score out of 800? I do plan to apply to a lot of the top programs (e.g., HBS, Sloan, Wharton).
Thank you in advance for any help!