Sorry to hear that the test didn't go well for you, GmatDM2016! But I think you might have answered your own question in a subtle way:
Quote:
I badly wanted that magical number 7 and felt I was prepared for it with my mock scores scores reflecting the range 680-740, although retakes since I had already attempted those while preparing for the first time.
Unfortunately, once you're retaking practice tests, you simply can't trust those scores anymore. They'll inevitably be inflated -- perhaps substantially. Honestly, it really doesn't matter whether you
consciously remember the practice test questions -- you'll have a MUCH easier time reading anything that you've seen before, and both your accuracy and timing will be helped enormously as a result. Even a small handful of repeat questions can radically change the testing experience.
The other issue is that it looks like you've relied heavily on non-official tests -- I see two GMATPrep tests in your signature, but the rest are "knockoff" tests. The bottom line is that GMAT test-prep companies can never do a very good job of copying the style of real GMAT questions, especially on CR and RC... and anybody who says otherwise is trying to sell you something. Sure, non-official GMAT tests can be useful as practice, but they certainly aren't ideal, particularly for verbal.
Obviously, I'm not sure exactly which materials you've used -- or exactly which practice tests you've repeated -- but a good, steady diet of official GMAT questions can only help your cause. If you need extra official CR and RC questions, try some LSATs -- they're consistently harder, but test basically the same skills as the GMAT. And if you haven't done all six of the official GMATPrep tests, then you'll definitely want to tackle those. Any "virgin" GMATPrep test will tell you a lot about where you stand; a repeated test from, say,
MGMAT definitely will not.
Good luck with everything!