I agree no one can "predict" but a guy can dang sure put the odds in his favor by doing his homework on the pedigrees and ancestry of the dogs. Find a family of dogs that have produced what you need over a few generations and breed dogs that stack as many of the ancestors that suit your needs and you'll be surprised what you can accomplish. To many folks get caught in breeding best individual to the best individual and neglect to pay any attention to the ancesty. The dogs will likely breed more like whats behind them than they do themselves. JMO
I know literally nothing when it comes to breeding dogs, so I'm asking questions in the attempt to learn..... That being said.... If you bred best individual to best individual a couple times, wouldn't you eventually be breeding dogs with good ancestry all the way around, even if you started with just 2 decent hunting scatter bred mutts?