<p>If the test is accurate then 2120 is a solid place to start. I have never heard of the book, but I will recommend you to just take a full length official SAT practice test. This would be the best way to get an accurate assessment of where you currently stand. </p>
<p>You can use any of the free ones listed in one of my older post:
<a href=“Links to Additional Official SAT Practice Tests from CollegeBoard - SAT Preparation - College Confidential Forums”>http://talk.collegeconfidential.com/sat-preparation/1277787-links-to-additional-official-sat-practice-tests-from-collegeboard.html</a></p>
<p>These tests are 100% reliable. If you need additional practice tests, buy the Official SAT Study guide. </p>