Hi TheMiszerak,
The scoring Algorithm on the Official GMAT is far more complex than most people realize, so you shouldn't be spending your time trying to figure it out. Suffice to say, your score is NOT just about the number of correct answers.
GMAC has publicly stated that a Test Taker's score on the Official GMAT is within +- 30 points of actual ability. Assuming a similar 'swing' in how your CATs function, these two scores are essentially the 'same' performance. Assuming that you took your CATs in a realistic and test-like fashion, then it certainly appears that you should score 700+ on Test Day.
Since your Official GMAT is in 2 days, you really shouldn't be doing too much studying at this point (if you would have asked, then I would have advised against taking this CAT two days before your GMAT). You should restrict your activities to some light review and general rest. You'll be better served by going into Test Day well-rested, calm and ready to work than by trying to 'cram' in a bunch of work in the last couple of days.
GMAT assassins aren't born, they're made,
Rich