Iam not sure, but there was a thread quite a while back of a fella on here who bred a litter of bull greyhounds with with one or two rough coated pups init, but am not quite sure i think he said that the parents were purebreds
The next litter i breed will be my big 3/4 bull, 1/4 greyhound Paddy on a first cross deerhound bitch. Should be something special (i hope)
1/2 deerhound 3/8 bull 1/8 greyhound i think should make handy tall killers