It's really tough to say b/c everyone has a different exam. First Aid is awesome, but if I had to guess, I'd say that your average med student (~30 MCAT) w/ average grades during the 1st 2 years of med school would pass but have a difficult time breaking 200 if they only memorized FA and used nothing else. Honestly, so much of the exam is just trivia. There were many questions on topics that I never reviewed during my 4 weeks of studying despite using many different resources. There were definitely numerous topics on the exam that were not even covered in FA or just not covered in nearly enough detail. (molecular bio comes to mind) Hell, some of them weren't even in the BRS books that I used, although I'd say most were. This is where the lack of detail in FA would hurt ppl who used it and nothing else. And then of course there were the 2-3 questions per block where I'd probably have to dig up my old syllabi in order to find the correct answers. Just random facts from the basic science years that you either knew or didn't. Some I was surprised that I remembered, others I had no clue on and just had to guess. Bottom line: If you want to do well on this exam, cover all your bases, b/c anything is fair game. Use FA but definitely supplement it w/ the proper BRS books, (Phys, Path, etc) and any other resources. Qbank is a good learning tool, but the questions are not indicative of the type of questions you'll find on Step 1. If you do all of the above, you'll be fine. 👍