The Zelon Cripple- Sulphur is a very similar pattern to the "old skool" Quigley Cripples. Use it as an emerger or cripple imitation. Did you know? Sulphurs have one of the highest incidence of stillborns/cripples in the Mayfly world. Therefore, it is imperative to have a cripple pattern (or 2) in your fly box when fishing the sulphur hatch.