Scientific Anglers Sonar Titan Sink Tip IIIFor Easy Casting with Large Streamers So you know where the fish are holding. Youve done your research. But you just dont know how deep they are. Luckily, the SONAR Titan Sink Tip fly line offers a variety of solutions for all of your depth finding needs. Just below the surface? Try the Sink 3. Holding steady in the shadowy depths? Get the Sink 6. Experimentation is the name of the game, so maybe it makes sense to try them both. Built on our popular