My scores were surprising to say the least. I scored higher than any of the practice exams even higher than the times when I reset GMATPREP and actually encountered repeated questions. My only study materials were Manhattan Gmat books 1-8 and the Official Guides.
GMATPREP 1 - 650
CAT 1 - 620
CAT 2 - 640
CAT 3 - 650
CAT 4 - 670
GMATPREP 2 - 680
CAT 5 - 690
CAT 6 - 640
GMATPREP 2 (reset) - 690
GMATPREP 1 (reset) - 710