The S782 is a 6'6" Light/Fast spinning rod rated for 4–8 lb line and a 1/16–5/16 oz complete payload. Its line system should preserve that Light-power job. It is not an ultralight S721 setup, and it should not be turned into a medium spinning system by oversizing line, leader, drag or terminal tackle.
Straight mono or copolymer
Straight 4–8 lb mono or copolymer is the simplest setup when easy handling, controlled stretch and forgiveness around small hooks matter. Lighter diameters favor small presentations and casting efficiency. Move toward the upper end of the S782's rating when abrasion, cover or fish size requires more margin.
Straight fluorocarbon
Straight 4–8 lb fluorocarbon can be useful when abrasion resistance, lower visibility and controlled sinking behavior matter more than maximum manageability. Watch spool memory as diameter rises. Do not oversize fluorocarbon simply for added strength; excessive diameter works against the light presentations this rod is designed to cast and control.
Braid to leader
Use thin light-spinning braid with a 4–8 lb mono or fluorocarbon leader when improved line management, casting or bite transmission is useful. The braid should improve the system without turning it into heavy-line tackle.
Use fluorocarbon leader when abrasion resistance or controlled sink helps. Use mono or copolymer leader when stretch, buoyancy or additional forgiveness around small hooks is more useful.
Leader length follows the presentation, water clarity, cover and whether the connection must pass through the guides. Keep the knot compact and fully seated. An FG-style connection can suit repeated guide passage when tied consistently; a carefully tied double-uni can be appropriate when diameter and guide clearance allow it.
Spool, drag and hook behavior
Fill the spinning spool evenly without overfilling it. Light braid loops and stiff fluorocarbon coils both create problems that extra line strength will not solve.
Set working drag below the weakest knot, leader and hook rather than using reel maximum drag as the target. Fine hooks need controlled pressure and a sweep, not a power hookset. If the presentation uses a heavier buried hook that requires substantially more force, it may have left the S782's intended lane.
Cover, walleye boundary and troubleshooting
The S782 can handle light-duty walleye applications when the complete rig remains inside 1/16–5/16 oz and the working line remains inside 4–8 lb. It is not the answer for heavier current rigs, trolling loads, planer systems or heavier live-bait systems.
Around light rock, wood or other abrasion, improve leader material and inspection before tightening drag. If casting suffers, check diameter, spool fill and memory. If braid loops form, correct slack and line lay. If hooks bend or pull free, reduce drag and hookset force. If the fishing job repeatedly requires line, leader, drag or terminal tackle beyond this envelope, choose a heavier system or use Custom Rod Consultation.