All good arguments against certifying cross country courses. However, the argument gets cloudy quickly when the course is a hybrid, road, trail, dirt path, grass or combination. I think the RRTC isn’t helping measures with less than definitive rules. In this case what is “not insignificant”? A 10K with a 1–mi dirt section with defined edges and or repeatable features properly measured will not result in a short course. That used to be our goal - within reason