i use to brief into my computer and take notes on the note cases and commentary. anyway, i found it somewhat useful, but not too much. When it came time for outlining, I found that the only really thing that was important was my class notes. I put note cases into my outlines, but I never had the opportunity or the need for that matter to get into the level of detail in the analysis sections of my exam to warrant using the case notes. Plus, the professor isnt going to ask a question that requires you really reference anything he didnt go over in class.
Anyway, you can take notes on it, but you are almost better off just taking the notes in the class, outlining from them, and if you think the outline is lacking or are confused, then to just g;ance back through the outline.