Since I only tie big bangers for salt water I am always using a heavy leader tippet so I don't have the breadth of experience some do on small FW poppers. However I am curious how leader would prevent spinning in lighter applications. This would infer that the line and tippet provide significant resistance to torsional forces, such that it would overcome the tendencies to rotate when pulled on the water due to direction and angle of pull, shape of leading edges, and keel weight (hook).
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