SAT prep

I am wondering if I should do buy books to practice more (PR, barrons, kaplan) or if I should buy books like Erica Melzter’s SAT Grammar guide and Dr. Chung’s book.

[url=<a href=“http://talk.collegeconfidential.com/sat-preparation/1517736-sat-books-do-not-start-new-threads-post-here.html#latest%5DUm…%5B/url”>http://talk.collegeconfidential.com/sat-preparation/1517736-sat-books-do-not-start-new-threads-post-here.html#latest]Um…[/url]