How We Place our Pups:
We are VERY picky about the homes we place our puppies in.  As you are well aware, this breed is not for everyone. Gabe and I do extensive, early socialization, enrichment, and beginning training with all the pups raised here.  During the early training and socialization, we are able to make a best guess on which puppy may have more drive for tug or for food.  Which puppy may need more mental stimulation than a typical home can offer  We do not allow new owners to choose puppies for themselves.  Since Gabe and I have competed and titled dogs in multiple performance venues, and we are always continuing our education on training techniques and dog behavior, it is truly best that you let us pick out the best pup for your needs.  This is also why we interview ALL prospective homes.  
I know alot of breeders may be touting the Volhard method, which claims it can predict a pup's future behavior.  In very recent studies, these "puppy tests," such as Volhard, have not shown that they can predict any adult behaviors.  The only behavior that seemed to be able to be predicted was a need to explore.  
Despite this setback for puppy raisers and breeders, what these tests can do is be a diagnostic for a pup.  They can show us what a puppy may need to work on at that moment, but It is not a predicator of adult behavior.  

Another study was also released around the same time as the aforementioned one, actually DOES prove that ALL experiences before a dog is a year old, will have a huge impact on how the dog will act when they become an adult.   So that means that all the enrichment, training and socialization we do, and YOU continue to do, will have a positive impact on your dog's life and ability to cope with stress. You can read more about what this means here on PuppyCulture.com