I'm new to Stockton but am going to set some sample lines on the little sac arm this weekend myself. The cover and conditions there tell me there has to be cats. I would assume the channels will be catchable though maybe not an aggressivve bite. They don't shutdown like their flathead cousins do in cold water. Depending on how much rain comes Friday id set lines on the bank in the brush and adjacent to deep water and a moderately steep bank. Depending on the size of fish your looking for try crawlers,cut bait,or hot dogs. I'm going to be trying it all to learn these fish. Good luck to you and keep me posted on your success