Hi Sherlockgun,
A little over a week ago, you posted how you were not feeling confident about scoring at a really high level on the GMAT. If your score goal has always been 770, then you should have pushed back your Test Date. As it stands, no Business School actually requires a score that high though, so you have to be mindful that the score that you "want" and the score that you "need" are almost certainly not the same thing. Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how you've been studying and your goals:
Studies:
1) How long have you studied?
2) What materials have you used?
3) How have you scored on each of your CATs (including the Quant and Verbal Scaled Scores)?
Goals:
4) When are you planning to apply to Business School?
5) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich