ive got one of the pups your talking about. sister to your pup. my pups coming on well about the same size 21 tts still got some growth in her, huge feet and legs, led one bloke at a show convinced shed got some deer hound in her. ive not pushed at all just let her grow up a bit, shes just started to get interested and im starting to push her a bit more know. i dont think speed is going to be a problem, although she is the same around other dogs as yours bit aggresive, mainly when shes on the lead and despite the fact shes being raised with other dogs. i agree about phil as well hes a sound bl