Erik, Don't worry to much about the whinning, as long as the dog is enthusiastic about retrieving and doesn't start balking at the dummies. Certainly don't worry about the cold water, it is a Chessie were talking about. I have two, a twelve year old male and a three year old female. The female often whines in exitement on the way to retrieve a bird, especially if it's a cripple. The old guy has retrieved some many birds, he doesn't get to excited about anything these days.