Scott Howell's designed the GOCHA Grub "based(loosely) on the Davis Spanker, the Laser Fly (tied with a similar material), and Ronn Lucas's Gocha Girl". He uses a dubbing material for the body called GOCHA, a Ronn Lucas product that Scotty says "yields a very life-like 'pulsating' quality." He says it is "finer than egg yarn, has all the movement of Marabou, but is tough and durable." It sure looks like a tasty morsel for any salmon, particularly for silvers. You can see more of Scott Howell's flies a The Flies of Scott Howell.