Neither of the dogs you mentioned are popular breeds. There is probably a reason for this, but I don't have any idea what it is.

If you really want one of those breeds I would recommend contacting the parent club, and asking about field bred dogs in your area. You will probably find that most are bench bred, but used for dual purpose. I don't know if you've ever seen a bench bred dog try to hunt, but I have and it was embarassing.

If you find a breeder in your area make plans to watch the parents, or earlier litters work. If the way the dog works is to your satisfaction then you are in the money.

As Phil stated it's your money so get the breed you want, but at least be an educated consumer. Remember, by the time you realize that a dog isn't going to work out you've alreadymade aconsiderable financial, and emotional comitment to the dog. How will your wife and kids feel if you decide to replace the dog( assuming you have a wife and kids)?

Anyway, good luck selecting.