I did visits to sled dog kennels this summer while I was in Alaska and the two that I got to see are very successful ones and the dogs love to pull bc they know they get to run. And Jeff King has dog wheels and treadmills where the dogs can run in one spot. But they also can tell f their dogs are getting tired or don’t want to pull or participate and for long races like the Iditarod will send them home if they need to. So like dogs really like to pull things as long as it isnt 2 much like horses

Very cool! I’d love to visit Alaska one day.