My GSEC instructor gave some good advice, I think. He said to first, read all the books again. Then take the first practice exam without using any books or prepared notes. Take note of the questions you have problems with, then create an index of the topics (topic, book #, page). While creating the index, study what you had problems with. Then take the 2nd practice exam using the index/books when needed, taking note of questions you have issues with on this exam. Go back, update your index while studying the topic. Then you can go into the actual exam with your books and an index of problems areas, just in case you need them (nerves get the best of you, etc).
I just took my 2nd practice exam for GSEC, improved my score by 9% and barely used the books. Studying the topics while creating the index really helps
