Hello again John,
It appears that I misinterpreted your original question. From what I understand, you can PR any number of books at any one time to the point where that is all you do during the day or week. I wish I had come acros this course 15 years ago when I was in college.
PR allows you to learn things from printed material. Just like the "old fashioned" regular way of reading, only much faster. (As an aside, I learned how to brew beer from reading a book just regular reading.) It stands to reason that you should be able to learn anything that is printed. If you wanted to do two or three college courses in one quarter or semester, all you have to do is get the recommended texts, PR, and activate the material. It shouldn't be a problem.
I currently have 14 text books that were published with the last three years that covers information that has been learned since I graduated from Chiropractic college 11 years ago. I am covering 1 text in a little over a week. At this point going to lectures is pointless for me as 1.) can't afford the time, 2.) the vast majority of material covered I already know, 3.) I cna better determine what I need to know as I can skip over things that I already know, 4.) if I have quetions about the information in the text I have found that I can contact the authors (most of the time they are happy to talk to me. The big difference for me before and after PRing is that I now understand the text and don't get lost in the detail and I can process the information at a fast enough pace that I don't get bored and stop studying the text before I'm finished. 
If I understand your question correctly, I think I am basically doing what you are wanting to do.
Does that answer your question?
Just trying to help.
Greg
