If the dogs bred right then that's a start, you then have to have a steady and patient head on your shoulders. take the dog out whilst digging and tie it up away from the earth, do this from around 7/8 months. this will let the dog get the scents and hear what's going on under the ground. when the dog gets to around 12/13 (maybe younger or maybe older depending on the dogs maturity, I personally wait until at least 13 months) months let it run empty earths. When the dog is around 15/16 months let it enter an occupied shallow earth (with a locator collar on) and then its down to the dog as you