<p>I completed eight College Board practice tests for the W section (and wrote three practice essays). I did not utilize any outside supplementary materials although Rocket Review seems to be popular for the W section to the same degree that Direct Hits is regarded for the CR section (which I did not utilize either). I suppose I already had a fair sense of proper sentence structure and grammatical conventions before I began preparing for the test.</p>
<p>If I were to offer any advice, I would try Rocket Review (but again, I cannot endorse it since I have personally never used it) and complete and review every College Board practice test available, which is the most effective strategy for guaranteeing any improvement on the SAT.</p>