Awesome Prep Course Without a doubt, taking the GD&TP Exam Prep Course was instrumental in our being able to pass the test on our first attempts. We believe the folks at AGI are truly dedicated to our success and absolutely unselfish in their efforts to answer any questions we could throw at them during our time preparing for the exam both during the prep class and through phone and email correspondences. They are truly consummate professionals we will recommend to anyone. - John Weed