Peter Frailey Is the originator of this variation of the gartside gurgler He ties it in multiple colors with different tails. Yellow is the color he uses most. His description is in the fly archive on Faol. A simple way to find what you what you are looking for in the archive is to go into the archive from the home page then push then ctrl key on your keyboard followed by an f . A box will come up type in the most distintive part of the fly name and click next

Good luck