Yeah, I have the book and pdf also. You need all the preptests since it's not included in the book. I'm comparing my initial setup with the ones provided by the book. I'm still a little bit confused on grouping, and other advanced games. But I've got basic linear down. My setup for others are still a little bit off. It's kind of hard, since I'm teaching myself material based on the book.
Plus the book doesnt provide you with explainations for all of the questions. They only provide setup diagram, a brief explanation about the game, and address 1 or 2 complicated questions in each game. Worth getting, if you want to ace the LG section.