I am working my way through the Sheppard Air IFR Test prep and like it. I really love how it is straight forward and simple to use and it's helping to get the job done. The memory aids sheet is awesome. As I get close to finishing all of the sections, I'm wondering how to go about getting the endorsement to take the exam. When I made the purchase from Sheppard, I sorta recall the nice lady who set me up saying they don't provide the endorsement like the Sporty's or King products do. Suggestions?