Scientific Anglers Sonar Stillwater Series Parabolic Sink Line On-water FS4: Same as FS3 but

FS4: Same as FS3 but with curved blades

This hook has become one of my favorite streamer and stonefly nymph hooks

So when you're up against the absolute pickiest of eaters

you'll be pleasantly surprised

Scientific Anglers Sonar Stillwater Series Parabolic Sink Line On-water FS4: Same as FS3 butThe Parabolic Sink line from SA gets its name from the parabola, or "U shape", the line assumes while proceeding through the water column. This "sweep" style of line gives your flies a unique action relative to all other sinking lines, exaggerating the descent at the beginning of the retrieve and the ascent at the end. A unique line, but one no serious competitive angler isn't reaching for frequently. Give it a try for yourself on your next tough day