I just wanted to take the time out to send McM Study Guides, Inc. a thank you for all the customer service you've provided me and for releasing these study guides in the first place! I used these guides and made E-6 my third time and E-7 my first time this year! The only regret I have is not picking up on your study guides much sooner. I will definitely be purchasing these guides again when it is time to go up for E-8 and hopefully blow that portion of the test out the water like I did the previous two. Thanks again! (PDG Gold and PDG Gold for Palm and Windows Mobile)

I've been using your guides and CD-ROMs for a few years now ... my scores have improved by 10-12 points since using your study guides. Maybe this next time testing for Tech will be GOLD! Thanks for your great products! (PDG GOLD)

Thank you very much! I have used your products for several years and attribute it to my promotions from E-5 through E-8 and am studying for E-9 this year.