Hi Braccio,
Many Test Takers spend 3 months (or more) of consistent study time before they hit their 'peak' scores, so you shouldn't expect to achieve much in just your initial 10 days of study. In addition, the 720+ score is above the 90th percentile, meaning that less than 10% of Test Takers ever score that high (regardless of how long they study or the number of times they take the GMAT). This is meant to say that you would almost certainly find a better use for those 10 days than studying for 120+ hours and spending $250 to take the Official GMAT when you'll end up having to pay to retake it later.
If you'd like to do some 'investigation' into the Test (and the process of studying for it) during those 10 days - with the goal of committing to a more structured, consistent study routine in the summer - then you might choose to put in some reasonable study time (NOT 10+ hours a day) and then take a FULL-LENGTH practice CAT Test; you can download 2 for free from
www.mba.com (and they come with some additional practice materials). That score will give us a good sense of your natural strengths and weaknesses and will help provide a basis for comparison when you study during the summer. A FULL CAT takes about 4 hours to complete, so make sure that you've set aside enough time to take it in one sitting. Once you have those scores, you should report back here and we can discuss the results and how you might study during the summer.
1) When are you planning to apply to Business School?
2) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich