The vast majority of Bedlingtons used in lurcher production are inferior grafters,fact,hybrid vigour seems to circumnavigate this problem much of the time.Im the Beddy,s biggest fan,id never own a lurcher with terrier in the mix though,far better options available.What i find,most of the time,its the education the pup receives that makes the biggest impression on its ability in the field,breeding certainly aids the development,yet many a decent bred dog fails in many a kennel,its easier to blame the breeder of a pup than its tutor.Id not go with a 3/4 bred beddy,its diluting the hybrid vigour