They also handle inbreeding very well which is something I look for in a line of dogs. They produce consistent litters and usually have a few well above average dogs in every litter. I'm starting over in these dogs and have narrow focus on the bloodlines I like. I wouldn't mind acquiring some Midnight blood, but most of the credible sources seem to have a high percentage of Eli in there which does work well but isn't necessarily the way I want to go. I man try the original source but that has it's own difficulties.