So I've been using both the ARCO book and the Cliffs TestPrep book, and their respective sections on mechanical comprehension problems are quite different. Does anyone know which book most nearly simulates the problems on the test? I've already taken the test once and it seems to me that a lot of the mechanical comprehension material in the Cliffs book wasn't on the test. The material in the Cliffs book seems way more intense, and way more in-depth. If anyone knows, it would save me a lot of time an energy. Also, does anyone have any suggestions on how to better prepare for this section? (Aside from the ARCO book and the marine gouge) I'm taking the test for the second time in a few weeks, and I'm not in the mood for any surprises this time around you know what I mean? Thanks everyone.