WWFF,

Usually on a sz.16 dry I will use three tips of CDC and I will try not to use the stem of a feather. To avoid the stem simply cut off the tip anywhere from 1/4 to 3/4 inch and then pull up the fibers below the cut and there should be ample amount for making a fly float. I also use Frogs Fanny with the CDC -- I know you don't have to but it sure helps 'em ride high.

After catching a fish you'll need to wipe off the CDC with something (shirtsleeve, rag etc.) to get off the slime; fish will really gunk it up. Dry off the fly as good as possible, apply more Frogs Fanny, work it into the feather, and you are good to go.

With smaller flies I can usually get by with two feathers.

Good luck.

GReg