Have you tied with Bird Fur yet? Richard Strolis has and he has a nice pattern to share. I’ve been using Whiting’s Bird Fur for a couple of patterns, mainly leeches in black, olive and claret. So if your not sure exactly what bird fur is, listen up. Whiting has been developing a line of birds specifically for the spey market. They brought out a line of birds a few years ago under the spey hackle name, and the bird fur comes from the low (bronze) graded saddles. The lines isn’t quite ready in my opinion for spey flies as the stems are much too thin. With some more selective breeding the line will surely improve. I’m eagerly awaiting improvements in the line.
Back to the pattern, the Dirt Dart takes full advantage of the marabou-like movement and would be perfect for bass, pike and bull trout.