If you are applying this year, I would say you do not really have time to take the GMAT. Your quant score may not be ideal, but your 710 is very good, as is your GPA, and at this time I feel you would get much more out of it if you were to focus your energies in getting all those application fantastic and all in before the R1 deadlines. Your story will likely count for more than if you were to retake and get a more balanced 710.
Hope this answers your question!!
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