What is the best SAT I MATH Book for me?

<p>Hello,</p>

<p>I'm currently prepping for the SAT and I would need like to get a math score of 720+. I'm in the 580-630 range at the moment. Every test I get 1-2 wrong because of "stupid mistakes", I am forced to omit some because of time and sometimes spend too much time on easy problems. I'm interested in solving hard questions that are stopping me from my target score. I have looked in Dr Chung's but review authenticity are questionable. I tried Gruber's but most of it is review of very basic information. </p>

<p>I'd also appreciate recommendations for SAT 2 Math as well since I have the subject test in January.</p>