Americani, how old are your csv and which sex are they? Neutered?
To be save, means keeping only a male and female of csv. Sometimes mother and daugther works. But all other combination do not work when they did mature. I am talking about the regular average case. having two males will work if there is no female. Even a neutered female and intact female will not work. That is the normal case. CSV are to dominant and to aggressiv.
So you do not have to try to train them, but you have to seperate them and built two packs and a save fence between them, a double fence.
Christian
www.wolfdogs-siouxtala.de