After the spawn, big bass quickly move to offshore structure, where they hold along humps, ledges, or deep underwater points. They're ready to feed, so whet their appetite with a big deep-diving crankbait. Make long casts so you can cover large areas from different angles and find the sweet spot on the structure. Crank the bait down, then work it more slowly through any cover in the area. Concentrate on the movement of the lure to detect light bites and to keep from snagging.