What is your favorite fly made from a pheasant tail excluding the basic and killer pheasant tail itself.

For instance someone might say the firefly (I realize this is simply a modified pheasant tail).

Mine would have to be the red devil Loren Williams has a tutorial of on his sight. He uses a biot for the body, but I use pheasant tail in mine. It is a killer in size 16 in PA, and I'm sure it is anywhere you present it well.

What do you guys have?