Yeah retaking a score like that is tough. Probably not needed. At least volunteer hours are simple to accumulate!I asked over 20 schools for feedback that I applied to. 6 of them agreed to it, and only 4 were helpful (not generic).
Most said an MCAT retake is not essential, despite my 124 CARS (511 overall). They said my nonclinical volunteering could have more hours. So sometimes, what you think is the biggest issue is not always the biggest issue.
I have plenty of everything else, EC-wise, however. And I got 3 IIs. So I do not think I need to make any major changes. I am applying back-to-back cycles.