STEP 1 : Catch in a Genetic Grizzle Cock Hackle..
STEP 2 : Now catch in two or three peacock herls (Tips first)
STEP 3 : Wind the peacock herl up the hookshank to a position just before the eye, secure the herl and trim waste.
STEP 4 : Palmer the hackle up towards the eye and secure.
STEP 5 : Trim waste, build a neat head and varnish..