I had very good studying technique. That is: I read extremely fast, and can pick put what they will ask in tests. Then I study that and just remember the main scenarios. This also has the benefit that I remember it decades later. And the "good little students" who grind their books forget their data one day after the test. That is in part a main problem with the educational system. And the ability/lack of seeing the "whole" is also a difference between N and S.
I find that there is too much importance put on "S"-data. Should be more "wholes" so that you get UNDERSTANDING.... But then again: Studying was quite while ago for me.... might have changed somewhat. And this is an international forum at that...