Thanks for the advice. I have a smaller boat with a 9.9 so I'm not sure I will be out on the main river but it does intrigue me. I hear about people catching crappie in the main river in the summer but I can't imagine where. When I look down at that big river, it's hard to believe there's a lot of permanent or even semi-permanent structure down there with the currents as they are. But I guess there is structure and the crappie are there. I imagine that takes some work to find them though.