Had almost the same experience with a bitch from very old great fell bloodlines, first 3 digs didn't put a foot wrong, we were planning future pups from her, the lot, by the end of the season the only thing she excelled at was a antagonising the rest our kennel, she had to go. Many a terrier can prove & unprove themselves between 2 & 3 years old, it's hard to know where to draw the line sometimes......
sometimes a change of hands with a dog workes wonders its a mystery to me why but it defiantly happens
Yes definitely.....depending on what's happening in your kennel at the time, i