Half Caff
This is a fly built off of the classic Stimulator pattern. It's similar in profile but slimmed down for skinny water. Minus the tail, abdomen dubbing and thorax dubbing, and a sparse wing. It's a stimulator, but with "half the caffeine".
Hook: Standard Stimulator (stonefly) #12-16
Thread: 6/0 Rust Brown
Abdomen: Half-size silver badger over thread base
Wing: Light Elk
Hackle: Brown Hackle over thread base