I'm just joining but found it useful to look over previous scores/tips when I was prepping for Step 2, so decided to pass along my scores as well. Hope this is helpful for someone.
Here were the scores I had:
Final Step 2 CK score: 245
Step 1: 245
NBME 4: 240 (4 weeks out, after having done solid Q bank for 10 days)
NBME 7: 242 (3 weeks out)
Free test: 85.8% (3 weeks out)
UWSA: 244 (2 weeks out)
NBME 6: 227 (5 days before exam, got really nervous and buckled down that week)
Avg NBME: 236
U World: 71% (2nd pass), first pass UWorld: 60%
Throughout M3:
-Studied for all my shelves as I went through M3 year (in hindsight I wish I had review First Aid Step 2 and annotated it). I did average on my IM shelf so wasn't sure how prepped I was
-Did Qbank x1 during M3 clerkships
Study month: Many people do this in 2.5-3 weeks, I needed 4 dedicated study weeks and then did some half fast studying (maybe 2 hrs of q bank a night) for 2 weeks
-For the first 3 weeks I did almost entirely Uworld, and did less than 1 hour a day of a review book of hard topics, videos, etc. For the last week I did mostly reading.
-It was useful for me to study with a friend; we would mainly do our own q bank but also quiz eachother, take coffee breaks, etc.
-UWorld x2 - This was my main resource and almost everything I did for my first 3 weeks.
-Reset Uworld shortly before my study month.
-Got through Uworld x1 in first 1.5 wks (I had done a few hundred before I took off time)
-UWorld x2 by 3 weeks
-Final week I wanted to get through my marked/wrong answers, but ran out of time, so mainly did other studying
-To keep focused on Uworld, I tried to follow a strict schedule and aimed to do 4 blocks a day. I worked 8am-12pm and finished roughly 1.5 blocks (66 questions), took an hour break to exercise/eat/relax, worked 1pm-430pm (1.5 blocks), and then finish 1 final block that night (that usually was all my studying but sometimes I would give up after less and do some reading or a video)
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Practice tests: UWSA was most helpful and representative of my score. NBMEs can cause stress and I don't think you need to do so many, but I found it helpful to do them and then use them more to go over topics with a friend
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Resources: I only read Secrets cover to cover, the rest I used as a reference
-USMLE Step 2 Secrets x2 - Reading once (took me 1.5 days) I think is well worth it
-First Aid Step 2 - I pent 1 or 1.5 days just skimming through and stopping at topics I had trouble with (mainly using high yield charts/algorithms), and also went through the "quick review"
-First Aid Step 1 - Reviewing harder topics (ex Neuro)
-University of Texas High Yield Shelf Videos - Watched these 4 at night after a day of studying:
http://som.uthscsa.edu/StudentAffairs/thirdyear.asp
-MedEd videos on Ob-gyn (since UT didn't have OB videos)
-1 hour doing Uwise ob-gyn questions
- I didn't use Master the Boards, but some swear by it
To sum it up, I think UWorld Q bank was the best thing I spent time on, followed by the UWSA and Secrets. But there isn't 1 perfect resources, and it's easy to spread yourself too thin, so use what works best for you! And don't freak out if you get a terrible NBME score...they really don't seem to represent your final score (although a lot of people had scores similar to UWSA).
Best of luck!