MGMAT 1 - 600 (43Q, 31V)
MGMAT 2 - 680 (48Q, 34V)
MGMAT 4 - 710 (51Q, 36V)
MGMAT 5 - 730 (51Q, 38V)
GMATPrep 1 - 760 (51Q, 42V)
MGMAT 6 - 730 (51Q, 38V)
GMATPrep 2 - 760 (50Q, 41V)
GMAT Exam - 770 (51Q, 44V)
Math - My Quant jump from 43Q to 51Q was more of me becoming aware of careless mistakes and tricks than me learning content, based on my heavy math background. I will say though, that, especially for number properties, MGMAT's books were fantastic.
Verbal - MGMAT was critical for that. Use the MGMAT Sentence Correction Book as a bible! It is perfect. Study it, make notecards with it, and study those notecards, especially idioms for those looking to get a high score! MGMAT's RC and CR books are also great, but I would suppose that once you know the trick, the key to these is becoming very good at the Process of Elimination. The correct answers are all there, you just have to uncover them. MGMAT's books can help you recognize how the test can hide things.
AWA - I did one full length test a week before with both AWA, and I did one practice of each essay with the GMATWrite Software, and that was enough. If you are from the United States and have done a lot of writing, I would say that that's enough. If you are not as comfortable with writing, I would say that you should study the OG and note the structure and content of the sample essays that scored highly.
Other things:
1) I think I did well today on Verbal because I told myself that I was going to be excited about all of the RC passages and CR prompts and the topics. Being excited about each topics really helped my comprehension and analysis, I think. Remembering that someone, somewhere, cares a lot about these topics that seem pretty useless can go a long way.
2) I was really nervous at the beginning of the test, but I think I became a lot more calm after finishing the AWA. Make sure that you take deep breaths before each section and think about the big picture.
3) Do lots of practice problems! I think I did every problem in OG 11, and selected problems in the Q and V guides.
4) Enjoy this test! There are a lot more complicated and difficult problems in life than Quant questions and Verbal questions. Studying and taking this test was a pleasure.
5) Stay positive!
Good luck. I'll keep checking out this thread in case anyone has any questions.