The logic and Aristotle SC guide is the only thing to have to tackle the section.
Now the questions are more complex than before during the exam. In my opinion I suggest you to memorize only those idioms not familiar with your hear and that's it. Memorizing a bunch of idiom is useful to some extent. This is a test about logic not idioms, they are more than 15000 idioms.
As a matter of fact, if you tackle a question based on an idiom split and THEN try to not consider this split, trying to pick the right answer only from the meaning standing point: you can arrive at the same answer. the right one.
KUDOS is the good manner to help the entire community.