I agree with Chang and I want to emphasize that the playful aspects of PR are essential. Basically anyone can learn to read faster by reading intelligently, but one still has to work. I recommend that you have faith in your own abilities and the proper motivation to succeed, first, before you set any sort of dependance on PR for taking 14 AP exams-- that's a lot. PRing will help you, sometimes obviously, at other times it just may be subtler insights, more specific memory.
