I have a feeling that some of this has to do with the breeding programs developed in the USA off established KNPV lines. The only problem I see with that, is knowing who the reputable individuals are. I know there are pockets of breeders with very good dogs, I've stumbled across them here on the WDF
but since I won't get on board with FaceBook or where ever else working dog folks are socially networking and am no longer in contact with some of those individuals, I'm SOL.
Maybe better said, I am dubious that finding a good dog isn't going to require another 1-2 year investment of my time in developing a rapport with someone I'd like to get a dog from.
On the topic of KNPV lines, Khoi I'd like to see some more video of that dog you posted above.