Got a bitch I bred, she coming 19 months and still puppyish, every dog is different! Does my nut in some days when the older bitch is hunting or trying to hunt the pup running a long side wanting to play! Until yesterday evening when they put a fox up and hunted it in to forestry patch. When they eventually lost it and came back the pup seamed different and all fired up, hopefully she,s turned a corner!