If a boat is built properly with the tunnel, the shoe should never touch the river bottom. However, if you hit the bottom hard enough, you may dammage more than your pride. Tunnels are great, but you can get a false felling in shallow water. You think you should be hitting rocks and your not. The next step is to go until you do hit. When you do it will be the boat that hits. It hurts!
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"BOCLMN"
Kevin Lund