How to Rig a SwellPro for Fishing

Buying a SwellPro is the first step in drone fishing. Actually rigging it correctly for bait work is the second step, and the one where most new drone anglers make mistakes that cost them fish and sometimes cost them drones. In this guide, we walk through the complete setup for a SwellPro bait fishing rig, from the reel on the beach to the release mechanism on the drone. Everything here applies to the SplashDrone 4, SplashDrone 4+, and Fisherman MAX, with minor differences in release hardware.

None of this is complicated in isolation, but the details matter. A poorly rigged setup can foul during the cast, fail during the drop, or cost you the fish of a lifetime on a weak knot. This guide covers the most common rigging mistakes and how to avoid them.

The Rig Components

A complete drone bait rig has the following components, in order from reel to hook:

1. Reel with main line. Typically a large surf casting reel loaded with braided line.
2. Main line backing to drone release. The part of the line that the drone actually carries.
3. Swivel. Joins the main line to the leader and prevents line twist.
4. Leader. A section of heavier line between the swivel and the hook, sized for the target species.
5. Weight (optional). Added to keep the bait at depth or in position against current.
6. Hook. Sized to the bait and the target species.
7. Bait. The actual food item the fish will attack.

Each component has specific requirements for drone fishing, which we cover below.

Main Line Selection

For drone fishing, we almost always recommend braided main line. Braid has three advantages over monofilament for this specific application: less stretch at long distance, smaller diameter for the same strength (which reduces wind drag during the drone cast), and better casting characteristics when the line pays off the reel during the drone's flight out.

Line class depends on your target species:

• 30 to 50 lb braid: General surf fishing for smaller species like redfish, jack crevalle, large snook, and bonita.
• 50 to 80 lb braid: Larger pelagics like king mackerel, cobia, tarpon, and medium sharks.
• 80 to 130 lb braid: Large sharks, tuna, marlin, and any situation where extreme line strength matters.

Load the reel with enough line to reach your maximum intended cast distance plus 30 percent safety margin. For a typical 600 meter drone drop, plan on at least 800 meters of line on the reel. Running out of line during a drone flight is a catastrophic failure that usually ends with either a lost drone or a lost cast.

Swivel Selection

A quality ball bearing swivel is non-negotiable for drone fishing. Skip the cheap options. A poor swivel will bind under load, fail at exactly the wrong moment, or create line twist that compromises the entire cast.

Look for a ball bearing swivel rated at least 50 percent above your main line breaking strength. If you run 50 lb braid, use a swivel rated for at least 75 lb. The rating is the manufacturer's tested breaking strength, and real-world use (especially with shock loads from big fish) benefits from that margin.

Welded rings are preferred over split rings. Split rings can open under sustained load, and drone fishing routinely applies sustained load during long fights. Welded construction eliminates that failure mode.

Leader Selection

The leader is the section of line between the swivel and the hook. Its job is to survive contact with teeth, fins, rough skin, and abrasive features that would cut through the main line. The leader also absorbs shock during strikes and initial runs.

For most surf fishing, a monofilament or fluorocarbon leader in the 80 to 150 lb class is standard, 6 to 10 feet long. Heavier leaders go with heavier target species. For sharks and toothy pelagics, a wire leader or heavy mono leader in the 200 lb class is often necessary.

Attach the leader to the swivel with a strong knot. We prefer the uni-knot or a double-loop snell for this connection because they hold up to the repeated stress of drone fishing. Avoid knots that are known to slip under sustained load.

Weight (When to Use It)

Weight is optional and depends on your target water and fishing style. For surface and near-surface species, no weight is needed. For bottom fishing, weighted rigs keep the bait in position. For cross-current fishing, weight stabilizes the bait against drift.

When weight is part of the rig, remember that every gram counts against your drone payload limit. A 200g sinker plus 500g of bait means you are flying 700g before any line or hardware. Plan your rig weight accordingly and stay well within the drone's payload ceiling.

Hook Selection

Hook size should match the bait and the target species. For live bait rigging, circle hooks are standard and strongly recommended. Circle hooks self-set when the fish takes the bait, which is important for drone fishing because you cannot feel light bites at long distance the way you can with conventional casts.

For 500g to 1 kg live baits, size 10/0 to 14/0 circle hooks are typical. For smaller baits, step down accordingly. Use quality hooks from brands like Mustad, Owner, or Gamakatsu. Cheap hooks bend on big fish and cost you the one that matters.

Attaching the Rig to the Drone Release

This is where the specific SwellPro hardware matters. The PL1 and PL2 payload release mechanisms use a clip that holds a loop of line until you trigger the release from the controller. The exact attachment procedure:

1. Ensure the release mechanism is mounted correctly. The release should be centered under the drone's belly and securely fastened. A loose release mechanism can shift during flight and cause asymmetric load.
2. Form a small loop in the main line, just above the swivel. The loop should be about 2 to 3 inches long and tied with a surgeon's loop or figure-eight knot that holds securely.
3. Hook the loop into the release clip. The loop should be secure in the clip but able to pull free cleanly when the release opens. Test the release by triggering it on the ground before launch.
4. Let the bait hang below the drone. The bait, leader, and hook should dangle below the drone without touching the landing gear or any other part of the airframe. A 3 to 4 foot dangle is typical.
5. Double-check for line fouling. Make sure the line is not wrapped around the drone, the release, or any prop. Fouling during takeoff is one of the most common drone fishing failures.

The Pre-Flight Check

Before every drone flight, run through this quick check:

• The main line is laid out cleanly on the beach and will pay off the reel without tangling.
• The reel drag is set to a moderate setting (not free-spool, not locked).
• The bait is attached securely to the hook and rigged to stay on during the flight.
• The release mechanism is clipped correctly and tested.
• The drone battery is at a safe level for the planned flight distance plus return.
• Wind direction and strength are within the drone's capability.
• The flight path is clear of boats, swimmers, and other obstacles.

Skipping the pre-flight check is how accidents happen. Take the 60 seconds to run through it before every cast.

Knot Quality Matters More Than You Think

Every knot in your rig is a potential failure point. In drone fishing, failures are expensive because they often mean losing the bait, the rig, and sometimes the drone itself if the line fouls during release. Take the extra minute to tie each knot carefully, and inspect your knots periodically throughout a fishing session.

The knots most commonly used in drone fishing rigs:

• Uni-knot: Strong, reliable, works with braid and mono, a solid default for line-to-terminal connections.
• Double uni-knot: For joining two sections of line (main line to leader when not using a swivel).
• FG knot: The strongest braid-to-leader connection, harder to tie but genuinely superior.
• Snell knot: For attaching hooks, especially circle hooks.
• Surgeon's loop: For forming loops in the main line for release attachment.

Final Thoughts

A well-rigged SwellPro fishing setup is the foundation of successful drone fishing. The drone does the hard work of getting the bait to the target, but the rigging is what catches the fish. Invest in quality line, leaders, swivels, and hooks. Take the time to tie good knots. Check your setup before every flight. And rinse everything (drone and rig hardware) after every saltwater session to extend the life of your gear.

Once you have the rigging dialed in, the rest of drone fishing is about finding the right water, timing your sessions well, and spending enough hours on the beach to learn what works. But the rigging is where it starts.