Took my GMAT yesterday. I had got a 720 (Q51 V36) a month back. I worked on a few things in the 1 month before the two attempts. But the most important thing was getting my pacing right with the 6 MGMAT tests that I took in this one month. My test record was
MGMAT 1 - Q51 V 41 - 750
MGMAT 2 - Q51 V 40 - 740
MGMAT 3 - Q51 V 45 - 780
MGMAT 4 - Q51 V 42 - 760
MGMAT 5 - Q51 V 45 - 780
MGMAT 6 - Q51 V 45 - 780
Finally ended with the mode value of the above scores. A trifle disappointed on missing out on Q51 as I have rarely missed a Q51 on the more than 15 mock tests that I took. But am really happy with the overall result. For all GMAT takers MGMAT is highly recommended-gives u the fairest idea of where u stand esp if u have done OG (coz gmatprep has a huge overlap with OG questions and ur scores are a lil skewed).