As an aside, Dave Hughes offers a little different method of forming a guard hair dubbing loop.

Unlike the split thread method or the "normal" dubbing loop, he gets one strand of thread greased up pretty heavily. He places the material on the single strand of thread. Then, he forms a loop, closes it and wraps it.
He does not, in this example, form the loop first and then "slide" the fur material into the loop.
Just a slightly different way of applying material for a collar...........