I belive that many great trout patterns have several things in common: they are quick and easy to tie, no special tecniques or tools required. The materials are easy to obtain, that would say available from most fly tying stores. They cast without problems and last but not least they catch fish. This legendary pattern comes from the vice of the Swedish fly tying Guru, Lennart Bergquist.
The bullet shaped aero and aqua dynimic form of this pattern makes casting a dream and presentation precise, for me there is somthing magical from the moment my SC lands on the water with a its distinctive “plop” that attracts attention, even from resting or lethargic fish. The body semi submerged and the wing and head floating high. This I always follow with a pause, let the fly rest on the surface for 5-10 seconds, allowing the leader time to sink and the fly to settel and hang. Then comes the retrieve. With your rod tip down, close to the water, and your line taut, start with short jerky retreives streaking the fly 10-15cm at a time, creating a small wake behind the fly as you pull. After you have covered a meter or so of water, take another short pause. Follow this procedure until the cast is fished out. When fished as an attractor pattern, you increase the speed and length of your retreive plouging the streaking caddis just under the surface causing it to pop and gurggle as it goes. This can induce fast and aggresive takes, even when there is little fish activity to be seen.
The shear “fishability” of this pattern just has to be tried to be belived. Firstly, as it was ment to be fished, under a caddis fly hatch. Where adult caddis are streaking across the waters surface.But in recent years the streaking caddis has also found its way into the fly boxes of sea trout and salmon fishermen. Fished in the same way, as a wake fly, it has teased up fish from the bottom of otherwise dead pools of many a salmon and sea trout river.