Are you insane! (look, I understand why you asked the question, being a 1L and all, so I mean no ill will). However, anyone who reads all of the unedited cases, and especially the cited cases, is retarded and simply suffers from a case of very, very, very, very, very poor time management.
Read the cases. That's it. Or even better, do what some suggested earlier...read the canned briefs and then read the cases.
The EXAM, not how good at being a gunner you are, is what determines your final grade. If you think you'll have time to regurgitate more analysis than the BLL you'll extract from the casebook cases alone, you are sorely mistaken and will be very sad when you get your grades.