"Breed em to go, and whoop em to whoa!"
I believe that statement to be 100% true. I'm a FIRM believer that the range a dog hunts is 99% genetic, and 1% not screwing up the other 99%.
It's FAR easier to start with good stock, then concentrate on not screwing them up with the "nurture" side of things than starting with mediocre stock and trying to train into them what should have been there genetically.
In my experience, a rangy hunting dog is also an independant dog and a lot of those attributes can be observed in young pups.