The fact of my accepting way of learning of saying the words and going on [mentioned in the Musar book אורחות צדיקים ורב נחמן the Ways of the Righteous and Rav Nahman Conversations 76  ] does not mean I see no place for intense review and in depth learning. It is just that this sort of in depth type has never been clear to me how to go about it. One of the many ways I have tried is this. Once I get to a place in a book where things simply stop making any sense to me [let's say for example in Algebraic Topology] it is at that point that I figure I need to do review. So I simply start where I am already holding and go back page by page to the very beginning. That seems to work for some subjects. But Tosphot is more self contained. You do not need to know every other Tosphot in Shas in order to understand one. So in terms of that kind of learning I would take just one particular Tosphot or some chapter in the Avi Ezri or Rav Haim of Brisk, and just review that one chapter day after day. So it seems to me that in depth learning depends on the subject.