That's my favorite moment, when all the harnessing is done and the brake is released and the cacophony of howling and barking is over in an instant as the dogs put all they have into just going. the transition from loudly being on the ground to suddenly, silently flying over the snow is so amazing! And boy - if you think 6 dogs is fast, try 16! managing corners with a string that long can be harrowing, though, especially since they have enough power to cause serious damage if the wheel dogs, the sled, or you get caught on anything. We had over 30 dogs in our kennel so in the lead-up to the season we would train strings of 16 with a big ATV.
glad I could stir some fond memories! I think everyone should get a chance to experience it, it's magical.