I went into testing at a disadvantage with just a "Promote" and an average board score. I decided not to let those slow me down and purchased PDG and CDC Advisor, and the PDG Audiobook. I scored 20 points higher than the average on both tests, and I made MSgt by 30 points. That's the second stripe I owe to McMillan.
Made SSgt, TSgt, MSgt and now a SMSgt selectee. Great product. It's helped my test-taking skills. It is also a big reason for getting promoted. (PDG GOLD)
I jumped 12 points with AFH 1 Advisor this year. Great resource!