This is one of the most important caddis pattern in my flybox. I created it after having tied a batch of the CdC & Elk and the Europea 12 flies. I What if I combine the best of both worlds: The great idea with the CdC body and swaying barbules from Hans Weilenmann’s Cdc & Elk and the nice wing and hackle construction from the E-12 pattern.
I fish this fly on rivers and streams with unbroken water – i.e. no riffles and no heavy current. The CdC barbules and the hackling (red) seem to be great attractors for both trout and grayling. Combined with the nice profile from the Mallard wing, the fly is a very efficient fish catcher on still water and calm streams.
This pattern is also a very good starting point for tying an efficient stone fly. You could easily adapt the pattern, simply by tying a thinner wing.
The trick with the fly is the body. Start the fly by tying in a long barbuled CdC feather on the back of the hook shank. Then, simply palmer the feather forwards to the point where you want to tie in the Mallard wing. Remember to stroke back the loose CdC barbules as you palmer your way forwards. If you are unsure, see Hans Weilenman using this technique on the CdC & Elk on his YouTube channel.