Same Total Score from 1st to 2nd GMAT Sitting. What do?

Hi GMAT Club, first time poster here...

I just sat for my 2nd GMAT exam earlier today (well, yesterday, now on the U.S. East coast). I've been preparing since mid-December 2018, only using TTP, since throughout my whole life standardized test Quant has been my weakness relative to Verbal (for reference, on the SAT back in the day - M: 620, R: 780, W: 770) even though I enjoyed math classes while growing up (especially calculus). Details below:

Exam Date Q V IR AWA Total
08/29/19 43 40 6 4.5 680
09/21/19 47 37 7 ??? 680

Today (er, yesterday) I did better on Quant than I’ve ever done on any practice test. Nice uptick on IR. But Verbal is disappointing, given that has been all that I’ve studied since my first GMAT sitting. In fact, if I had to diagnose what went wrong, I ran out of time and had to guess on the last batch of questions for Verbal. I attribute this timing issue to some new strategies I learned for the critical reasoning and sentence correction problem types, namely SWIM and IMPACTS from Veritas Prep through some PDFs that a friend shared with me. I have no doubt that these techniques substantially improved my accuracy for those questions that I was able to answer... but at the expense of a slight time crunch which nailed me at the end of the section. Dare I say, had I had a few more minutes and been able to use these same techniques, this might be a very different post. I should also mention that I've never scored below 40 on Verbal in a practice test

As of right now, I’m resolved to sit for the GMAT a third and final time, regardless of what score I can achieve at that point. Plan being to maintain everything and just improve verbal pacing. I plan to take my remaining three official GMAT practice tests between now and then, thus finishing the practice test phase as part of TTP (aiming for 2-2.5 weeks from now). Does all this sound sensible?

I also had a question for the broader forum on how business school AdComs view individual Q, V, IR, and AWA sub-scores: they don’t super score, as was the case at the undergrad level with the SAT, is that correct? My fear is that even if I can improve my verbal score to the 44-47 ballpark, as I have scored on practice tests, that I don’t simultaneously do as well on Quant as I just did yesterday. If helpful, not sure if my target schools HBS, Stanford GSB, Wharton, Columbia, and Booth look at this sub-score question differently from one another. I'm aiming to land somewhere in the 710-740 range and feel that I would have a competitive shot if I can do so, given the rest of my profile, career trajectory, etc.

I know that Verbal should in theory be my strong section, so while the improvement on Quant is welcome and 100% attributable to TTP, my performance on Verbal is puzzling. In spite of all this, I feel pumped and ready to get back at it. Third time's the charm!

And for those who are curious, I took my first ever GMAT practice test, GMAT Official Practice Exam #1, last year cold turkey and got the following:
Exam Date Q V IR AWA Total
09/14/18 29 40 4 ??? 570

Any words of advice?

-NYCShark