Hi aj3001,
Based on this post, I assume that you really want to purchase a new Quiz Bank of questions and get working on soon. However, that is probably not the best course of action at this moment. I responded to another of your posts (here:
https://gmatclub.com/forum/please-help- ... l#p2550371) with the following message:
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Since you have purchased the ESR, then you can either feel free to PM it directly to me or you can include it as an attachment in this thread (for example, you can 'edit' your first post and include the attachment).
GMAC has publicly stated that the Official Score that you earn on Test Day is within +/- 30 points of actual ability. Assuming a similar 'swing' in how your CATs function, your various CAT score results - along with your 2 Official Scores - show that you essentially performed the same each time (about 640 +/- a few points). You handle certain aspects of the GMAT consistently well, but you also make certain consistent mistakes. Since you have been performing at this level for some time, it's possible that you have gotten "stuck" in the mid-600s. By extension, working through lots of additional practice questions in a Quiz Bank in the same ways that you did you before will probably lead to a similar score result. This is meant to say that your focus should be on learning and practicing the proper Tactics (so that you have the necessary skills to earn a 720+) before you spend a lot of time working through additional practice questions.
Once I've had a chance to review your ESR, we can discuss how you might best proceed with your studies going forward.
GMAT assassins aren't born, they're made,
Rich