After reading this for a good bit I thought I'd add my thoughts on the "process". I've been preparing on/off since January, and my school only offered a month of dedicated prep time.
US MD program at average state school
Sources Used: FA, Pathoma, Goljan, Some pages in Kaplan, HY Neuroanatomy, Step I Secrets, Small Robbins
Uworld: 75% on timed random mode (last month of studying)
USMLERx: 85% tutor and timed mode
NBME 16: 243/570
NBME 15: 247/580
NBME 13: 249/600
UWSA1: 247/600
UWSA2: 262/740
Read FA(4+ times, mostly memorized), Uworld went over once, Kaplan I used for embryo, HY neuroanatomy is great for getting the nerve pathways, Step I secrets is great bedtime reading
Test day Late June:
1st section: really wasn't too terrible, some weird questions on worms but definitely doable, comparable to Uworld and NBMEs on a good day
2nd section: WTF WTF WTF, flagged about 25+ questions, almost ran out time and did not have time to review flagged questions
3rd-7th: Better but lots of weird pelvic anatomy and Renal topics, flagged about 12-15q's/section
Overall the exam was extremely challenging, far far more difficult than any of the NBMEs or Uworld questions, I'm used to finishing problem sets a good 20-15 minutes early during practice but I ran to the wire on many sections. Behavioral sciences was not too bad, but some ethics questions were pretty vague and could've have gone either way. The microbio really threw me off, I did not review parasites & worms that intensely and got about 10 questions on those subjects (F*cK!). Timing I feel was key, most of the sections I only had a max 5-6 minutes to review my flagged questions. My second section was ridiculously difficult, lots of random and rare diseases, so I ended up guessing way more than I felt comfortable with.
This entire exam at this point is such a crapshoot, lots of the questions were very wordy and had answer choices that required a way way deeper understanding than those offered in the qbanks or FA. Overall I felt like I knew maybe 65% of the exam, made educated guessed on 25%, and the remaining I pretty much christmas-tree'd. Big advice is to read as much as you can during your first two years and get subscriptions to journal articles and such. I was aiming for a 245+, but I'd feel lucky to pass. This exam is the spawn of Satan. Good luck to you all.