Presenting a bait or lure to walleyes is more difficult when there’s low visibility. Adding rattles to jigs or using crankbaits with sound chambers in-creases the odds the fish will zero in on the lure. So will increasing its size: If you fish with spinner rigs or crawler harnesses, use larger spinners. Ham-mered metallic blades work well if it’s sunny; otherwise, use brightly colored blades. If you fish with jigs and bait trailers, a plastic curlytail grub body will add bulk. Bright colors, either fluor-escent or multihued, are an added attraction, as are glow-in-the-dark jigheads. Scent (either scent-impregnated baits or a spray-on product) is helpful.