When tinkering with this pattern, I played around a lot with using almost obscene amounts of sili legs and krystal flash in the tail because I really wanted a fly with a ton of movement. I think this final result is a healthy balance between how much movement you need to trigger a strike and not going through too many bags of sili legs while tying a box full of these flies.
Materials:
Straight Eye Streamer Hook Size 10 (Orvis)
Sili Legs Nymph, Pumpkin/Green-Orange Barred
XL Lead Dumbbell Eyes (Chartreuse)
Midge Flash (Root Beer)
Saddle Hackle