Hi divs173,
From what you've described, it sounds like your Official GMAT score is lower than your practice scores, but you haven't offered any specifics.
1) How did you score on each of your practice CATs (including the Quant and Verbal Scaled Scores)?
2) Did you take the ENTIRE CAT each time (including the Essay and IR sections)?
3) What time of day did you take your CATs and what time of day was your Official GMAT?
4) Do you take your CATs at home or do you go to a different location?
5) Do you do anything during your CATs that is not 'test-like' (skipping sections, pausing the CAT, listening to music, etc.)?
6) What is your goal score?
Thankfully, Business Schools don't care if you take the GMAT more than once, so there's no harm in doing so. Also, since the GMAT is a predictable, standardized Test, you CAN train to score at a higher level.
GMAT assassins aren't born, they're made,
Rich