Hi keywi4u,
While the most realistic practice CATs/mocks available are the 6 from GMAC, the Veritas CATs are close enough to the real thing that they will give you a realistic score result (assuming that you take those CATs in a realistic fashion that matches what you will face when you take the Official GMAT). There are also a variety of factors that can impact your performance on a practice CAT, including how well-rested you were when you took the CAT, the time of day that you took it, the section-order, the testing environment, whether you took the CAT before (or saw any of the questions before), etc. Based on these Scores, you likely have the knowledge to earn a 700+, but it's not clear whether you've honed all of the necessary skills needed to consistently score at that higher level or not.
Before I can offer you any additional advice for your studies, 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? How many hours do you typically study each week?
2) What study materials have you used so far?
3) On what dates did you take EACH of your CATs/mocks and how did you score on EACH (including the Quant and Verbal Scaled Scores for EACH)?
Goals:
4) What is your overall goal score?
5) When are you planning to take the GMAT?
6) When are you planning to apply to Business School and what Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich