Ok, I returned back after a while (problems with hackers who put down 3 times my blog).
Here is a simple emerger tied with CDC only. I use only CDC for body and I use only CDC for wing. What I like at this fly is the air bobbles attached on the body and how the CDC barbs from the wing moves and keep the shape of the imitated fly:
Oh, I forgot to tell you that from time to time I use for ribbing Hends Body Quill in yellow color:
To obtain a nice wing like this I make a normal hackle using CDC barbs only or an entire feather. When the collar is finished make an 8 figure under the barbs using Trico Thread and the wing will remain in this position forever:
Bellow I make the 8 figure with the thread. Here I used a black 8/0 Uni Thread because a Trico is difficult to be noticed
When I use the entire feathers the stem will occupy a lot of space on the hook shank. This is not a problem for big flies but for small flies is difficult to obtain a nice shape and a nice profile. This is the reason why I prefer to use only barbs. Down you can see the fly tied only with a hackle made of CDC barbs.
And both flies:
And bellow are the fly tying material used:
Fly Hook: Demmon fly hooks DGS barbless #16-12
Thread: Uni Trico 17/0
Body: CDC pure dubbing