We went with the grey collar pup from the litter. Here's Hayden!! He was pretty good on the 3.5 hour trip home. We had to give him a few things to chew on so he start chew on my truck. He wasn't really having any of the crate on the way home, so I put that in the bed of the truck to give him and Badger more room. We picked grey collar for his demeanor. He looked following is around instantly, although we did consider teal and the black collar as well. All pups had dropped testes as of this morning's vet check up. So choosing one had no health issues as a reasoning.