Tart and Tangy Dun (Steelhead Flymph)
Hook - Alec Jackson Model 2051 Spey Hook / Size 7 (Black)
Thread - 8/0 UNI-Thread (Black)
Tag/Rib - Small Copper Wire
Rear body - Lemon-Yellow Yarn (Thanks Christopher Lee)
Front Body - "Grapefruit" Steelhead Dubbing Blend (50/50 blend of hot pink and hot yellow yarn - created by Nick Pionessa)
Body Hackle - Webby Furnace Feather
Collar - Seven Strands of Ostrich Herl (Slate Grey)
Head - Tying thread coated with Sally Hanson's "Dries Instantly" clear nail polish
* my wife is going to be so pissed when she sees what I did to her feather duster... So worth it!!! *
The yarn for the rear body was given to me by Christopher Lee (cassady). It is some sort of fuzzy fine-diameter yarn. The yarn has is quite glossy/sparkly, which makes me think it is some sort of synthetic blend. The yarn is ultra soft, which should give a lot of movement in the water. The fibers create a sort of halo effect around the rear body. Thanks Chris, I really like working with this yarn.
The front section of the body is dubbed with a special dubbing blend that was created by a Nick Pionessa, owner of the Oak Orchard Fly shop. The bend is a fifty-fifty mixture of hot pink and hot yellow yarn, which has been chopped up and blended together. It looks like an intense grapefruit colored tups blend. Really nice stuff.
The fly itself is tyed like a large flymph. Once I tyed and ribbed the rear body, I tyed in a prepared hackle, dubbed the front body and then folded the hackle and wound it forward over the dubbed body. The ostrich herl was tyed in after the body was finished.
In hind sight, I should have used my thumb nail to strip off the fibers at the base of the herl, before tying them in. The fibers made it difficult to create a tidy head on the fly. If you look closely at the head of the fly, you can see some fiber protruding from the head. Frustrating to photograph, but perfectly fishable.
Overall, I like this color scheme very much. The fly looks like is will swim nicely. We will see, come fall.
I was wondering if you might run me through how you handle tying on the herl, though...a "semi-stack" of feather fibers, letting thread tension distribute them around the shank? 
