<p>For math, im at the low 600s. Should I get Grubers now and once I'm getting a high 600's or low 700's switch to Dr Chung's? The BB's strategies arent helping me for math very much. My ultimate goal is to get 780+ for math. I have neither books now but can get them.</p>
<p>anyone? .</p>
<p>If you’re at low 600s, get Grubers. If you score 650 and above get Chungs.</p>
<p>You should get Gruber’s. Once you’ve mastered that and consistently score 680+ in practice tests from BB, then by all means you should go on to Chungs.</p>