Hard to imagine the 2016 Express Orange would have a game set up to play down against the 2017 Turtles (Express) unless the 2017 Turtles insisted on it. I don't have a horse here but could this be confused with the Green Turtles, which is a 2016 team? If anything, if they really want to test themselves "within the Express family" the 2016 Express Orange should insist on playing up against the 2015 Express Orange. I think it would be a competitive game and maybe not something the 2015 folks would want to see?