We were very lucky to have had some dealings with Jane Killion some years ago. We are doing our best to follow her puppy culture program with our most recent litter with enormous success. The puppies are showing great startle recovery and are using their toilet area without fail. They have met a variety of different house guests and charmed them all.
We highly suggest that anyone that buys a puppy from us buy her DVD series, so that they can finish the last two weeks of the 12 week process. https://www.puppyculture.com/
The form of deafness found in ACDs and bite issues cannot be tested for. They are a product of the mixed genes of the parents.
Here at Bullhead Kennels we realize that our breeding program is just one long experiment. We never blame one parent or the other for throwing an undesirable trait. Instead, we measure the severity of the issue and correct in a manner we find suitable.
If one bad gene is culled all the good ones attached to it are culled too.