Hi thomas1111,
A 650+ score on the GMAT is the 80th percentile (or higher). It means that 80% of Test Takers either can't or won't do what it takes to score at that level. With your most recent practice CAT scores and only 2 weeks of study time remaining, it's not likely that you will score 650+.
The good news is that you can still take the GMAT as planned and then take it again later, as needed. Business Schools don't really care if you take the GMAT more than once. With enough time and effort, you can train to score at a much higher level than you currently are.
We've worked with Test Takers who started off with practice scores lower than yours, put in the time and effort and scored 700+. They needed 3 months though (which is a length of study that I recommend to ALL Test Takers, regardless of ability).
Remember that your journey to your MBA is a multi-step process. I understand the burden of deadlines, but if your GMAT score is not competitive enough to get you a good "look" at the Business Schools you're going to apply to, then the deadline really doesn't matter.
GMAT assassins aren't born, they're made,
Rich
