

As luck would have it, I've been obsessing lately on how to tie a softhackle "mini-craw:" I

The "composite" in this case is the rearmost hackle that was made by inserting "burned" GP tail fibers into a dubbing loop along with a bit of dubbing; the loop's then spun a wrapped, much the way you would with a hair-hackle. (The feather needs to have been burned first or otherwise have had its barbicels removed, though--otherwise the little hooks and dubbing fibers make a dog's breakfast of things.

At any rate, it's a way to get different kinds of material (e.g. GP or Amherst pheasant tail) on your hook without having to deal with the lumps formed by a too-thick rachis.