Areas you can skip?

My friend completely skipped Portfolio Management/Corp Finance and passed on her 1st try. As I see it in the Schwesser exams, PM is the smallest part of the test. I have only glossed over the information, but should I even bother re-reading it? All I know is in order of importance: #1) FSA #2) Asset Val #3) Ethics #4) Quantitative Analysis #5) Economics #6) Portfolio Management