Tru n l running stuff on its own terms in the daylight and at the right time of the season shows what your dog is really capable of but as you say a few do's on the lamp is good fun, some good races can be found aswell on well ran land but at a fraction of what you get in the day n you always have to be honest with yourself, "GOOD RUN THAT", "BUT WOULD IT HAVE CAUGHT IT IN THE DAY"..