FM
I have a book on "ski Jouring with your dog" (touring). It is written by I think a Norweigan gal. Anway she says "Do not let an untrained dog pull the pulk with your child in it...." frown However in Scandinavia they ski behind the dog with the pulk in between and the dog pulls the sled and the owner and the owner can control the dog (somewhat) because they are tied together.
Jim
_________________________
These are my own opinions based on wisdom earned through many wrong decisions. Your mileage may vary.