CDC soft hackles are some of the most productive nymphs you can fish with. When the CDC is in the water it captures micro air bubbles along the hackled feathers looking like a shiny air sac on emerging aquatic insects. Tied on a jig style hook with a pheasant tail and Siman thread body, I like these in a #16 or #14. An olive hackle is good as is the brown or tobacco brown. If I have a color listed then it'll fish!
Great year around and definitely a surveyor pattern. Excellent on wild streams and performs nicely on tailwaters. Give these a shot and you won't be disappointed.