Thank you for your aircraft guides. They are an indispensable part of learning aircraft systems and operations for me. I noticed that you updated the A-10C Guide last August 2016. I printed the complete guide late winter\early spring of that year (if not late summer the year before). Could you tell me what were the changes that you made to the updated version of 8-8-16? I have several of your guides in binders. However, the A-10C is the one that I use the most. I want to keep it current and would prefer to print only the updated pages rather than the entire guide. Or if you can point me in the direction of a change list. I really appreciate your hard work on the guides. Excellent work. Please keep it up.