Just to expand on this a bit from the perspective of a current MS2 gearing up for dedicated:
- The curriculum and scheme presentations are nice in hindsight.
If you plan on prioritizing outside resources as your primary study tool (Boards and Beyond, Sketchy, Pathoma, etc.), the multi-disciplinary approach can be somewhat frustrating. For example, one week you may touch on very specific system concepts but then hop over to an entirely different system due to the overlap. Within the context of that scheme, it makes sense, but if you're using outside resources, the jump can be very frustrating. That being said, current MS2's, and I believe MS1's are doing the same, are creating "Correlation Stations" where lectures are matched up to lecture resources.
My personal recommendation considering STEP prep: Obviously, figure out how you study, but give the correlation stations some real thought. It's to your discretion on whether you want to go through lectures or outside materials first, but I do think that they complement each other decently well. There are minutiae here and there, but they're very manageable.
- I am not a fan of our current Spanish integration. It's a series of online modules that you can brainlessly click through. However, we are currently in the process of grabbing additional Spanish faculty and hopefully that'll lead to a better process. From what I've heard from upperclassmen, you will be using a decent amount of Spanish during rotations anyway, so it's worth the time investment imo.
- Border health experience depends on how much work you want to put in. There are a ton of chances, ranging from volunteering to student-run free clinics, so go for it!