If you can find the areas in a lake or river where crappies spawn, catching a limit of these prized panfish in the spring doesn't require a lot of expertise. It's the rest of the year that gives some anglers fits. Before and after the spawn, when crappies stay in deeper water, fishing gets tough. Roger Gant has it figured out, or at least at Pickwick Lake. A longtime guide on the big lake where Tennessee, Alabama and Mississippi converge, Gant adheres to a strict plan year-round for catching slab crappies. His proven method involves slow-trolling small jigs over structure along deep contour lines.