For some reason I find it very difficult to finish the PS section on time. I always end up having to guess on one passage (and some more questions here or there). I don't seem to have this problem with the Bio section. I seem to consistently get 9's on the PS, but I know I am capable of more. Is there a particular strategy that works for some people who had trouble finishing? Right now, I read the entire passage before aswering questions. Is that the problem?