700 (49/36) With testing center distraction. Retake?

My hesitation is that on the GMATprep, my best score was 710, which roughly translates to a 720 according to the GMAT scoring tool. So I am in a situation where I was hoping for an additional 20 points - if I was scoring in the 740s, it would be much easier to justify a retake, hoping for an additional ~50 points. In addition, I'm under time pressure - I am going to submit for regular decisions at the end of the calendar year, which means 30 days spent studying are 30 days not spent putting together butt-kicking application(s).

As far as the difficulty, I was actually very nervous throughout the test because I thought the questions were very easy in comparison to the Kaplan Premier tests I took for practice - I finished the Quant with 8 minutes to spare, finished the Verbal almost 20 minutes ahead of schedule. The difficulty was slightly easier than the GMATprep, in my opinion.

Other than a single Quant question that I knew I screwed up (stupid mistake) about 15 questions in, I felt reasonably comfortable that I was not making any serious errors, and any guesses were between two choices, as I had dismissed the others by process of elimination.

I was all psyched up for some combinatorial problems, but only got one that was so easy I just drew it out on the scratch pad instead of trying to do the math and making (another) stupid mistake. All the work rate problems I encountered were DS, which made it much easier than coming up with an actual answer. Additional Quant questions that caused me some issues were exponent related - I encountered more than expected (seven if I recall correctly), and while certainly solvable, they have historically slowed me down, which is perhaps why I was in a rush.

For Quant, my suggestion is to memorize simple formulas like internal degrees in an N-sided polygon; formulas for sums of consecutive odd, even, or both, integers; the values of 10! and 15!, so you can spend lots of time struggling with the truly difficult problems instead of doing a bunch of back-of-the-envelope math.