The problem typically occurs in the low waters of late-summer or early-autumn trout or smallmouth-bass streams, where long and shallow clear pools are interspersed with short riffles. The trout or bass are in the pools. Ultralight gear is perfect for making a long cast that won't spook them. But typically, by the time you start a retrieve your spoon, spinner, or little jig has sunken into the shallow rocks. So you're stuck.