i did not purchase the dog with papers, i am not sure the mother has papers. sounds bad to most here i know but i based my purchase on what i saw the parents do while working, i worked all the breeders dogs myself and other progeny that were old enough.
the grandsire is nukey which many here will prolly know as a great sport dog. a nukey son is the sire but not sure what nukey was bred with - whatever it was the breeders of nukeys son are top and well respected breeders.
my dog was the first outcross with the nukey son - is nukey czech, i don't know, which makes me don't know if his son is czech etc. he looks it?
the grandsire on the dam side is a well known street dog, well known by private industry at least.
which makes my dog a bit mean junk-yard dog outcrossed with elite international level sport dog.
i would not go this training route either if i had a choice. dogs are adaptable and i am not stupid or cruel. if the dog is going to work the training will neither prevent him from or cause him to work, what a dog is is what a dog is.
he will do street work, i won't start him untill he is 2yo and then he will only get easy gigs out of harms way untill he shows he has the capacity. if he fails he will be my pet, albeit an active pet. personally i have no doubts he will do the work, a prediction yes but sheesh not many people would even go anywhere near him now.
sorry about vagueness of ped but i never went to buy a piece of paper i wanted a dog and the best way i know how to do that is see the parents and progeny work and know the breeder his plan experience past products of breeding and his ethics.