The Scientific Anglers SONAR Titan Triple Density is a sinking fly line for casting large streamers. Each section sinks faster than the one behind it. The I/S2/S3 gives you more time above weed beds; the S3/S5/S7 lets you keep a streamer deeper on a brisk retrieve.
Read the three rates from the running line toward the fly. On an I/S3/S5, the running line is intermediate, the middle section is Sink 3 and the tip is Sink 5. As the tip pulls the fly down, the line behind follows at progressively slower rates. This helps keep a straighter connection to the fly when a fish takes.
| Profile | Line weights | Running line to tip (approx. in/s) |
|---|---|---|
| I/S2/S3 | 6–12 | 1.25 / 2 / 3 |
| I/S3/S5 | 6–11 | 1.25 / 3 / 5 |
| S3/S5/S7 | 8–12 | 3 / 5 / 7 |
These are approximate sink rates. Current, fly weight, sink time and retrieve speed all affect fishing depth. The 33.5ft head turns over bulky streamers; total line length is 105ft. The Titan is built two line sizes heavy to load the rod quickly. Use the marked size for your rod: for an 8-weight, choose WF8.