Actuall conditioned weight is determined by maximizing your dogs physical potential. Its the best weight your dog can be at without taking anything away from your dog. For example last year Rebel stayed at 55-56lbs conditioned. Right now he is at 60lbs which would be his chain weight. Now seeing that he has matured some I will have to see if he can safely get back down to 55lbs or if he is stronger at 56-57.