Gruber's Complete Guide and/or the Math WB

<p>Right now I'm attending this SAT Boot Camp at this one place. On the tests, I've been getting mid-600's in math: 650, 630, and 690 out of all the three tests I've done so far. I really want to get my math up to 800 and it is the section that I want to improve and perfect the most on. Gruber's has obviously helped out many of you CCers who have received 800s on the math section on the SAT as a result of it and I am planning on purchasing it. However, it comes in a Complete Guide and the Math WB. do I get both or just one (and if it's just one, which one)?</p>