Here goes my first post: From my experience, if you're at the 35 mark you need to go back and go over every single question in the practice exam. At that level, every question makes a difference (especially VR). What I did was take a practice exam, then the next morning go through it section by section, up to 2hrs per section. For each problem, you write down whether it was correct or incorrect, and write your thought process for reaching the answer you got. If incorrect, rework any relevant equation, etc. and write how you now understand why the correct answer is in fact the correct answer. Think about any possible shortcuts to reach the answer faster, and look up any of the facts you don't remember (for BS and PS). This was a modified method of what Kaplan had in their course.

I first heard about sdn while studying for the MCAT this summer, and it proved to be immensely helpful. Good luck on the exam!