HELP Catfish rig for river drifting?

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Hi everyone looking for some advice. I do alot of catfishing infact I was out on the bank of the bear on Friday only caught a couple little guys 18-20 inchers. Anyways I was wanting to take the duck boat out this year and just drift on down the river dragging some cut bait/ worm but was wondering if anyone has done it and has a rig that works well. I usually fish a carolina rig from the bank but im worried i might be fighting snags the whole time. Thanks in advance
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