When water temperatures tumble below the low-40F range, bass often move from mid-depth flats to more vertical structures. Fast-breaking edges allow bass to change depth easily, without traveling long distances. Under mild conditions, bass move shallower and feed along the upper lip of the break. Cold fronts or chilly weather send them back down into deep water. For fishing steep banks, it's hard to beat a drop-shot rig with a softbait such as a stickbait, worm, or minnow. Dropshotting lets you carefully probe deep edges and imparts enticing action to the lure, often needed to tempt bites in cold water.