I taught my first dog agility and put him in a few competitions, dogs don't need the course layout. They need to learn how to get through individual obstacles quickly (like second nature quickly) and to follow your lead. They know the obstacles by themselves really well and know to follow their trainer's lead. All I'm doing during the competition is leading them to each obstacle and the dog does the rest. So I'm not really sure if it would help that much anyways if the courses were the same and its not hard for me as a trainer to learn a course layout on the day of competition. If the dogs aren't well trained to follow their trainer's lead they're going to do poorly even if the layout was static.