I'm not gonna start a brand new thread, but I basically have the same question as the OP. I've done UWSA 1 & 2, scoring high 250's on both. I have 2.5 weeks till exam day. I see people recommending 11 & 12 over 6 & 7, and that 6 & 7 seemed to have some questions from the real exam.
Questions:
1) Which correlates best out of those four with the real one?
2) Is it worthwhile to get the expanded feedback?
3) Do 12 & 11 have some of the "actual questions" that people are referring to?
I'm leaning toward doing #12 and then #7. Comments?
Somewhat unrelated note: all the blocks in UWSA, I managed to finish comfortably with over 15 minutes left. Is this about the same as what I should expect in the NBME blocks?