My son (junior) got 2330 on his first SAT: 760 CR, 800 M, 770 W. He mainly studied the blue book and did about 6-7 practice tests. He consistently got 780-800 in CR and W but only around 700 in M in all of his practice tests. I searched online for helpful SAT math books and found the book, PWN the SAT. Bought the book about 2 weeks before the actual test. He went through about 2/3 of the book, and got the perfect score in M (with a little luck). He said the book really helped him get over the 700 barrier. I highly recommend it.