I read a post some weeks ago from some one who loves this breed like we all do and is active in the show ring. However, in one of their educational posts they stated that many of the working lines cannot out work a show line(ASL)all day in the field in terms of herding. I'm assuming this has to do with the differences in structure? In your guys opinion would you believe this to be true? I know some working lines can be extremely prey driven and might not be the best herder. What are your thoughts?