Older fellow on the Stilly showed me a file he uses. Clips in your pocket like a pen, grooved on two sides, believe Ted's sells them. Take about three strokes on three different sides. File takes off too much material and leaves it rough. I was getting frustrated with long line releases after 5 or 10 seconds. Started sharpening hooks, even new ones, made all the difference in the world.
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Don’t attribute irritating behavior to malevolence when mere stupidity will suffice as an explanation.