@FinLuver — I will agree with you on that. In the water, flies do behave significantly differently than they look in a static, wet setting out of the water. I am fortunate enough to fish an inshore flats location very close to the open water of the Florida Gulf. On incoming tides, the water becomes exceptionally clear and brightly colored flies are usually very visible from a distance over dark grass or sandy potholes. Over the seasons, from the behavior I have observed, I’ve tried to incorporate specific ideas into my baitfish flies—especially the deceiver style.
Profile: Long wet bucktail for the tail and wings compresses nicely during the retrieve to achieve the approximate profile in the images above. The faster the retrieve, the more compression achieved, thus narrowing the profile. When the retrieve is slowed or stopped, the bucktail tends to flare somewhat widening the profile.
Color Contrasts: All the material used contributes to some extent to the basic color scheme of the fly—usually a light underbelly with increasingly darker top and barring or spotting somewhere in the middle. The middle section is easy to see when dry, but becomes somewhat subdued when wet.
Flash: Flash added to the tail and a bright braid body act like running lights on the fly giving it visibility at a greater distance than does the more matte colored materials do. I have found Crystal Flash to be the most durable and least impacted by hot temperatures. Variegated Crystal Flash—especially black/silver, blue/silver and blue/copper are essentially bright neon signs advertising the fly in clear water.
Movement: Although clearly the bucktail provides some movement to the fly in the water, the addition of a clump of marabou and/or vinyl legs under the forward bucktail wings really enhances the appearance of movement when the fly is both being stripped or static in the water. Using barred marabou and vinyl legs with flecks of flash and colors complementing the overall color scheme adds to the flies appearance in the water. What’s more important in my thinking is that the flies are UNWEIGHTED and fished on a long sink tip with a short—3-4’ stout leader. The fly line/leader gets the fly into the zone and the flies behavior is unencumbered by weight that impedes subtle movement.