STEP 1 : Run the thread down the hook shank, catching in two peacock herls as you go, these are tied in tip first and the thread returned back up the hook shank and left near the eye.
STEP 2 : Wind thew peacock herls up the hook shank to the eye being careful not to overlap them and tie off with thread.
STEP 3 : Now trim the peacock herl with scissors to create a tapered "Carrot" shape.
STEP 4 : Now catch in a black cock hackle.
STEP 5 : Wind the hackle with around 6 turns and secure at the eye. (You can vary the amount of turns depending on how sparse you want the hackle to be).
STEP 6 : Create a neat head, whip finish, cut away thread and varnish the head.
Final : The final step is to trim the underhackle. This allows the fly to sit much further in the water than a full hackled fly.