Right, but I think you miss my point. I don't think it's realistic to "just study for boards" without also paying strong attention to classwork, and vice versa. They go hand-in-hand. The stuff in class is on the boards. Unless you're in a class where the prof drifts all over the place and doesn't give a fig for students' board scores, they're teaching you what you need for Step 1.
This is what I'm talking about. At my school, we got 5 weeks at the end of second year to review for the boards. Even though I was one of those people that did QBank and annotated FA from January on, what I discovered was that there was SO much material that it was difficult to review it all in the 5 weeks. More often than not, when I was doing the NBME tests (or taking the actual test), a question would pop up that I hadn't seen anywhere in my review. Usually it was an integrative, second- or third-order question about a disease process or some such. It wasn't in First Aid, QBank, or any of the review sources, at least, not presented like that. I had, however, seen it in class, and it had stuck because I'd studied like mad for the class exams. So that was a question I got right on Step 1, as opposed to missing it because I hadn't learned the material well the first time. This happened a LOT. Point being, don't blow off the classwork, because it's the best, richest source of Step 1 info you're going to get.