We have a whippet x jr. He's a super obedient dog. He was meant for ratting but he doesn't have it in him bless him - too gentle. As for a bushing dog I'm not sure as he has a thin coat and is a right wimp although I'm sure if you got a cross with more terrier characteristics than whippet such as a thicker more wiry coat and more tendency to 'hunt' (than mine does, anyway!) you might be in with a chance.,,