Get the Trainer and decide for yourself. Mike emphasizes reading for reasoningstructure, which is IMO the best way to get what you need from the passage.
I found both Memory Method and LSAT Trainer helpful as both my recall abilities and my ability to read for reasoningstructure were abysmal. It all comes down to what your deficiencies are.
... key is to read for reasoningstructure! What helped me develop these ... my mind to read for structure and how everything relates. Try ... LSAT writers have for the structure of a passage like; introduce ...