I wanna see if I can buy a leader that knows the trail then I'd love to race!
I just had some thoughts
In my experience even 4 dogs and a racing(light basket)sled can move at a really good clip for 10 miles. I did eventually get to mush Seeseep's(my wife's cousin in ThePas)"skinny mutt looking" dogs but he said I should only take 4 of them "bkuz they ain't your freighting dogs. These dogs are 25% angel & 3.125% demon." When I asked him what the other 76.875% is he said,"Bout half&half Cheetah and Duck Hawk". "Duck Hawk" is a falcon.
Sweetheart I think it's your job to know the trail and the dogs job to know your commands.
You need to study the map, even the topographical, and be on the ball calling out your commands and on the brake and/or drag-mat because you & them dawgies gona be flying.

Oooooooooooo you gonna love it. I'm just tickled for you.