This morning I was reading about a shore fishermen who fishes below this one dam when they're generating. He said it took at least a 4 oz sinker along to keep his bait down and he used a huge bobber. He throws upstream with cut bait, lets it settle in an eddy or just lets the current wash it down. He fishes 4 feet deep. What's the best big bobber to use effectively? He gets big cats this way and I imagine he loses very little tackle to snags.