Does the OG 13 guide contain all of the same questions as the OG 12 guide, except for a few new ones? I will not be taking the exam after June 5th, so i will avoid the IR portion which the OG 13 guide attempts to help you prepare for. Is the OG 13th guide worth purchasing then? I am specifically looking for new questions, because the OG 12 guide I have gone through twice already. I however, have never used the Verbal or Quant supplement, and I wonder if the OG 13 guide is just the OG 12 guide plus the 2 supplements. I've gone through Powerscore, OG guide, MGMAT 8 Guides, and I have not taken a practice test, but I scored a 640 on the real exam back in September. I'm wondering what other material I should be practicing with to help bump me to a 700.


any help appreciated.