
There was a phase a few yrs back wasnt there, I know certain people were scroing and they would not allow bitches to be used on their dogs if they were not scored, I know this because my friend did not have it done so she couldnt use the dog she wanted to. It certainly runs in families, no doubt about it, and having had one and known several with it, you can see it VERY early on in apparently normal dogs who's owners are not aware, so therefore I cant see it not being hereditary, as the animals have had no accidents or trauma. I agree with you about accidents etc though, have known it to come on that way, but that makes me even more concerned that there is such a weakness there in the first place.
Dawn.