When I was starting out, I used to stick to one book and take notes religiously from that book, but as time went on, I've started referring more and more books for one topic, and just jumping between four to five references on the same topic. In this case, it seems difficult for me to take notes, as the effort taken in finding references and switching between them, makes it more difficult to go into the exact details of one book and take specific notes.
For those who are most experienced, how do you manage taking notes when there is a number of references? And, is it better to increase the number of references for understanding a subject deeply, or to go through a fixed number of texts deeply?
There is also a feeling of pointlessness I have, as I don't think I would be able to top the exposition of some of the texts I read myself.