Why do step 2 before step 1 if step 1 is the one that usually holds people back. Seems like a potential waste of time and money to me.
As far as your question, I thought the NBME tests were all over the place. Seems to me that UWSA are more indicative but there are only 2 of them obviously. If I were you I would probably do NBME 7 and know that it is likely slightly underestimating.
