Wayne has never been satisfied with the method of forking tails that required making a ball of thread or dubbing to split the tails on either side or fan them over the ball. In his opinion, the resulting appearance leaves much to be desired. His preference is slender bodies matching the shape of the natural insect.
Another slightly more preferable method is to loop thread underneath the tail fibers from the back, and then pull the loop forward fanning the fibers while adjusting the spread by the degree of forward pull. Once in position a final wrap or two in front of the tails locks the fan in place.
To learn more about Wayne's preferred methods, read his article and watch the videos below.
READ WAYNE'S ARTICLE