Hi beesy,
Based on your table/data, there is a particular pattern that stands out...
In the days leading up to each of your Official GMATs, you took SEVERAL practice CATs on back-to-back days....then, on Test Day, your Verbal Scaled Score dropped significantly. This type of "pattern" happens more often than you might think.
Taking a CAT requires a significant amount of time and effort, so I normally advise that students take only 1 CAT/week. It also takes time to "recharge" and make the necessary adjustments to one's approach before taking another CAT. The bulk of a student's time should be spent studying, reviewing past material, practicing "other" approaches to questions, etc.
This data leads me to believe that you were "burned out" before each of your Official GMATs and your performance suffered because of it.
Your Verbal scores have fluctuated throughout your past CATs, which means you're either making some silly mistakes and/or you're too often "narrowing down the answers to 2 choices and then guessing." THAT approach is not a great way to tackle the Verbal section, so I'm going to recommend that you find a GMAT course that fits your personality and budget and learn some specific Verbal tactics from an expert.
If you're interested, you can use the Free 24-hour trial for the EMPOWERgmat course and view whichever Verbal Modules interest you. Since your Quant scores are decent, but not great, you might consider investing some time on the Quant section too.
GMAT assassins aren't born, they're made,
Rich
