Take a CDC feather and strain the fibers towards the tip.
Tie the feather on a hook grub, so get an extended body.
Holding the hackle from the tip, I strain the fibers along the feather quill making them converge with those who exceed from where the extended body is tied.
Trim the excess of the feather.
Hold up in vertical the fibers of the wings, and tie it with a few ''eight cross'' turns of thread.
Tie the head of the fly
Trim the fibers in excess from the wings.
Mirage 2 spent