Scientific Anglers Sonar Titan 3D Sink (I/3/5)Triple Density Sinking Fly Line Get this: we took one of our most popular tapers, the Titan, drenched it in various mixtures of tungsten powder, and created a triple density sinking fly line that will absolutely change the way you fish streamers forever. This is a fully tapered sinking line, so it casts like a floater, but provides a straight line sinking connection to your streamer. The days of chucking and ducking are finally over. Welcome to the