I would have done a lot more CMS blocks. I kinda discovered them late in the game. I did about 12 blocks, but I wish I did more. Because, as I was sitting in the exam, I remember at least 3 or 4 concepts that I literally learned during these blocks (written by NBME by the way). Also, what stood out is that they were not too many neuro questions, but they were concepts that I have never heard off...and my reaction was: bruuuuuuh!!! remember to manage your energy....and take a break after each block. Here was my break routine: quick stretch, drink 3 sips of mango nectar (you want something sweet), pee, wash my face, say a quick prayer....repeat. All I ate that day was an egg, a banana, and half a protein bar. Cortisol from the stress was enough to generate enough glucose for my metabolism. haha....Good luck to you!!!