I have to say first that what you are scoring right now is most likely approximately what you will be scoring in 1 week. Most people don't see a significant jump in score in the last week.
On the plus side, you are within one standard deviation of a 700 score. (Remember, though, that standard deviation works in both directions). Generally, we recommend that people try to hit their goal score on at least one practice test before taking the real thing.
If you are okay with this and are willing to take your chances (and re-take the test in future if need be), then go ahead and take the test and see what happens. Maybe you will hit 700!
FYI: if you reschedule an official test date at least 7 days in advance, then you only have to pay a $50 re-scheduling fee. If you are already within 7 days, you would have to pay the whole $250 again. I think you are already within the 7 days; if so, then you might as well take the test. You've already paid for it!
Next, let's talk about what to do to continue to lift your verbal score (nice work so far, by the way!).
First, you mention timing issues. You should be letting some questions go during the section, yes, but you may or may not want that to be an entire RC passage. Really, what you want to do is pick the hardest questions as you see them scattered throughout the test. You can guess quickly and randomly approximately 4 to 7 times throughout the section (the same is true of quant) without significantly impacting your score.
How do you know what's too ahrd? Here are some criteria I use:
SC: I read the sentence and can't even understand what it's trying to say. I read it again - still no. I substitute in answer (E) and try again. Nope, still lost. Guess my favorite letter and move on.
CR: I can't figure out what kind of CR question the problem is. I can't understand the argument or find the conclusion (if there's supposed to be a conclusion).
RC: The content is really technical. Usually, in this case, I can still pick up the overall / main idea, but if I realize that the detail in paragraph 2 is terrible, and then I get a question about that paragraph, my best path might be to guess immediately and move on.
Next, I never let myself agonize back and forth between two answers. If I've narrowed to two answers, I allow myself to compare those answers just once. Then I have to make a decision and move on.
Those steps should alleviate, if not eliminate, your timing issues and that alone might help you to lift another point or two. But here's something else you can do when studying verbal problems:
Ask yourself:
1) why was the wrong answer so tempting? why did it look like it might be right? (be as explicit as possible; also, now you know this is not a good reason to pick an answer)
2) why was it actually wrong? what specific words indicate that it is wrong and how did I overlook those clues the first time?
3) why did the right answer seem wrong? what made it so tempting to cross off the right answer? why were those things actually okay; what was my error in thinking that they were wrong? (also, now you know that this is not a good reason to eliminate an answer)
4) why was it actually right?
Read this:
http://www.beatthegmat.com/mba/2015/08/ ... r-the-gmatThat will also help you to make appropriate decisions to bail on certain questions.
Re: missing details of problems, that's basically because you feel pressured to rush because of the timing issues. If you do what I said above and reduce that timing pressure, you won't feel so compelled to rush, and you won't make as many careless mistakes. (You'll still make some, though. You're human!)