JDT, I was talking to Mr Scott a few years back when we got our first ones from him; he has had a lot of dogs in the past that were used as herding dogs as well as catch dogs. They were just farm dogs. They caught when they were supposed to and worked when they were supposed to. Keep in mind though that the more time you spend with any dog the more they know what you expect and want from them. I raised a Scott bred female that went to the ranch with me from about 3 1/2 months old, and rode through hundreds of yearlings and never made a bobble. When I sorted one off and roped it she caught it. As soon as I turned him loose she was right back to trotting along beside me. She was a little hard to get off once she caught but I never had to tie her back or anything like that. After a few she got easier to get to let them go. Then she ate one of the boss's wife's decorative little pumpkins and I couldn't take her anymore. Dumb bit@@. Not the dog!