As Frie states, SC requires 80% attendance or you fail the class so it is not even an issue here.
I really took this into consideration when choosing a school. I tend to learn quite a bit during class and try to pay attention as much as possible and then review material taughtthat day in the evenings - it seems to be working out OK.
Note: I just went through a couple of Step 1 review books yesterday to make sure we are being introduced to the relevant concepts and aside from a couple random terms, we are being taught all the High Yield material in detail plus a load of additional stuff that hopefully will come in handy in later semesters and the Step 1. Also, in pretty much each lecture we are introduced to clinical correlates which is much appreciated by this dude and makes for more interesting learning IMHO.
"Teaching only takes place when learning does. Learning only takes place when you teach something to yourself"
Anthony de Mello, SJ