Yep I have watched blaze work,, and what a good dog he is.,,,,
If they turn out any good, would you be thinking of what giro said,,, back to a running dog,, whipp, or grew ?
Or just keep them as bushers and go back to terrier,,, I think a 3/4 terrier 1/4 collie might appeal more ,,,, not that you have done this for approval ,, I know cos you have found them all homes befor they were born..
Anyway I think they will do you proud mate,, so I won't say good luck,,cos I bet they take to it like a duck to water..