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John Barr

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Barr's Slumpbuster streamer fly — olive pine squirrel Zonker strip with tungsten cone

Barr's Slumpbuster: The Streamer John Barr Built for Big Browns

John Barr's Slumpbuster is the most versatile streamer in Colorado fly fishing. How to fish it, when it works, and why the pine squirrel does things a Woolly Bugger can't.

May 20, 2026 8 min read