It has all the triggers of a large dark olive tyed in size 14 or 16
The cdc footprint wound around the throax gives a almost perfect profile ontop of the surface film..
Notice the 10 or so spleyed tails to stop the flys back end from dropping down. ..
I will be doing a video soon so keep a eye out on here .
Tails ... Grizzle hackle cock
Thread ... Glo brite #15 purple floss
Abdomen ... Stripped quill ginger
Wings ... Three plumes of wild cdc
Throrax ... Split thread style cdc