I find shallow water fishing is easiest after a front because of how it positions the fish. Any piece of cover (dock, brush, bush, tree, garbage, scum, rock) that casts a shadow or a dark spot will usually hold a fish. It doesn't if it is in 6 feet or 6" (yes 6" and the fish has part of it's back out of the water). As long as the fish can get in it or under it so it is in shade and is able to ambush.