<p>Dont worry about it, if you have good basics, a 5 is rather easy to get :) 780 for my SAT II</p>
<p>i simultaneously self studied for chem, both phys c and calc bc for only 3 months prior to the exam, and still score 5 on all.. the trick to get them even without knowing any of the advanced topics in ap? know your basics well.. if not you'll be totally lost.. :) cheers</p>