Here's my advise, I got done with GMAT a few days back got a 670 (Q45, V38). I am not happy with the score (you can read my debrief), I would be retaking the test. But here's how I improved in verbal.
1. SC - First - Get the MGMAT Bible, read it every alternate day for a couple of weeks.
Second - Start solving questions from OG10 and OG12. Mark out problems you get wrong and search for answers
Third - Make your own SC notes, when you take GMAT prep or any exam, google the questions you get wrong, learn the concept. For example,
ONE of the X is/are - You will find an amazing explanation in BTG, search for it. Likewise, once you learn something make notes and make sure you go through the notes.
"Learning to apply the theory is one thing, getting it internalized so well that you can apply it without thinking is another"
Verbal is all about breakthroughs, they come over time, i broke the 32 barrier, now i need to break the 40 barrier. You need to go from 27 .to...32.. to..36...to 38....40...40+ . It happens over time.
2. CR - Get PS -CR bible. Go through it, it will clear your basics, But again this is just basics, I just gave 1 month to my prep. and only went through CR bible in the middle of my study month, so by the end of it, i had not done enough questions, it is all about pattern recognition in CR. Practice Practice Practice, After you are done with OG, you can move to LSAT CR, atleast thats what i plan to do.
3. RC - I din't practice RC much since 1 month was a short time to improve on RC, I suggest you figure out what works for you, i.e. does taking notes work for you? does skimming work for you? do you prefer reading the question and looking for answers in the passage? You need to figure out what works for you and then perfect it.
You did very well on Quant 48 is a great score, but let me warn you, learn from my mistake, for your second attempt don't ignore Quant. I was scoring 47-49 in my GMAT prep's, you never know when you get hit by a series of questions you are not comfortable. Keep practicing Quant
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ou have two options, chose your poison, you can work to improve your verbal and aim for a 48, 38 split, that would equate to 710. Or you can aim to improve your Quant to 50-51 and verbal to 35, which would also get you 710.
When i started my prep, that is the exact decision i had to make, I wanted an even split. So i focused on my verbal and ignored Quant. If i had not run into trouble with the workstation at the test center i might or might not have scored my usual 47. But the point is.. anything can happen. So you need to prepare for the best.
Hope it helps
PS: Whatever you do, don't lose heart. I know how a bad score feels, but don't give up. You never know when the tide will turn. If you think you can fly...you will. Good luck.