Hi EddieHollywood,
The pool of questions that comes with each of the 6 Official GMAC practice CATs is somewhat 'limited' (you'll face a larger pool of potential questions when you take the Official GMAT). Unfortunately, retaking a CAT that you've already taken is NOT a realistic way to assess your skills. Seeing even a few 'repeat' questions can 'throw off' the Score Algorithm and impact your pacing, energy levels, fatigue, etc. As such, for this next phase of your studies, you need to use CATs that you have NOT taken before (and that present questions that you have NOT seen before) AND make sure to take them in a realistic fashion (take the FULL CAT - with the Essay and IR sections, take them away from your home, at the same time of day as when you'll take the Official GMAT, etc.).
I'd like to know a bit more about how you've been studying and your goals:
Studies:
1) How long have you studied?
2) What study materials have you used so far?
3) How have you scored on EACH of your CATs (including the Quant and Verbal Scaled Scores for EACH)?
Goals:
4) What is your goal score?
5) When are you planning to take the GMAT?
6) When are you planning to apply to Business School?
7) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich