Another twist with the CDC. You might see it mentioned if you read Hans' article or look up his pattern "CDC and Elk". Using that fly as a concept, I tie up a pattern similar to the one you mention, but with a wrapped CDC body, and use either CDC or snowshoe rabbit for the wing. I also tie my Usuals with the wrapped CDC body rather than the dubbed one. Another thing I do when using CDC for a wing on a dry or an emerger. Rather than tie in the whole feather, I strip the barbules off the stem and tie the bunch in just like I would deer hair.
Here's an example of one that I tie up though this one doesn't have the CDC tied in like deer hair.

http://www.danica.com/flytier/jcaruso/w ... _midge.htm