You should be very careful not to take the test too many times. If you have taken the test 4 or five times, the school will think you are concentrating on the wrong factor. Also, if it takes you five tries to get a 700, that is much less valuable (and less convincing) than if you get a 700 on the first try. The moral is, you should be very sure you are performing at your best possible level before taking the exam.
Tani Wolff