How's this - KG's Spring Creek Scud:
Hook: DaiRiki 125 sizes 16-12
Thread: 6/0 Uni - olive
Tail: AZSimi-Seal, olive-amber blend
Shellback: Plastic bag material
Rib: Pearl Krystal Flash
Body: AZ Simi Seal olive/amber
dubbing, picked out and trimmed
I tie it in olive and amber or a blend of the two. I think there is a Fly of the Week archived here somewhere with a step-by-step.
"There will be days when the fishing is better than one's most optimistic forecast, others when it is far worse. Either is a gain over just staying home."
Roderick Haig-Brown, "Fisherman's Spring"