Look, if you do not know anything about physics, then Photoreading an advanced physics text will not help you. I think it is fair to say that Photoreading won't give you greater comprehension than you would have gotten if you slow read. You could spend 3 years slow reading that advanced physics text book and it still won't mean anything to you.
The question to ask with Nietzsche is, would you have understood what you had read better if you had slow read it? Many undergrads find Nietzsche nearly incomprehensible the first time they read him. Remember, your professor has not only read many different Nietzsche texts many times, she has also read many secondary sources about Nietzsche.
The question I would ask myself, if I were you, is: Now that I've sat through the class on Nietzsche (a kind of secondary source) what do I get out of Photoreading Nietzsche?
I would venture to guess that you could get a lot more out of it. Probably your professor made reference to 3 or 4 main points about Nietzsche. Now you can disregard 70% of the text and focus more closely on the 30% that the professor said was important.
Of course, you might think that your professor is full of bologna. Then you'll have to work a lot harder and think for yourself. Barring this possibility, many professors will tell you in the class lecture and discussion what it is you should get out of the reading. So spend 90% of your time reading the 30% that the professor singles out.
The objection to this that is raised, for example, in some Amazon.com reviews, is that for real books, it is not the case that 70% is unimportant. I agree. 70% of Nietzsche's Beyond Good and Evil is not important. But the reality is that first-time Nietzsche readers just don't understand the book at all. The role of the teacher is to guide the students to the 30% important parts. Once the students have understood that then can, if they need to, work on the other 70%.
[This message has been edited by Moises (edited April 12, 2002).]