[Carol Burke]

I don't know anything about Labs, but I used to have GSDs and it was sometimes very difficult to tell on an 8 week old puppy if both testicles were descended. It sometimes took awhile for an undescended testicle to come down. I have not seen this problem in Rotties. You were sold pick or whatever for hunting I assume and whether the testicle comes down or not really will not affect your dog's ability to hunt. If you were sold the dog as a breedable animal thats a different story.