So I’ve been involved with several different breeds of working dogs. Most of the dog men/women keep a closed yard with very limited to no dogs leaving their yard. The ones that do are fixed so they can’t produce puppies. They breed and keep and work what they have and try to produce the best with line breeding/ inbreeding and occasional bringing another dog in for an out cross from what they are currently running. These yards are normally 20+ dogs and I was curious if anyone is doing this? I did this for a long time but kids came and dogs had to go.