Last year I caught lots of fish with a 3-4' leader and not far from the bank. Guys up there were casting 50+. I can't cast a long leader anyways. It always snags on the branches or stuff or someone's dog \:D Not saying they were not flossed. You can do it with any length leader depending on the conditions.
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I'm a great believer in luck, and I find the harder I work, the more I have of it. Thomas Jefferson.