Home
/
Tackle Express Blog
/
How to Build a Trolling Spread for SoCal Bluefin Tuna: A Speed-by-Speed Breakdown
How to Build a Trolling Spread for SoCal Bluefin Tuna: A Speed-by-Speed Breakdown
One of the most common conversations we have in the shop goes something like this: a customer comes in, they've got Madmacs, they've been out twice, they're not getting bit. We start asking questions and the picture comes together quickly — wrong speed for the conditions, lures too close to the boat, wrong lure in the wrong part of the spread. They were trolling. They just weren't trolling right.
Here's the thing most people miss: trolling for SoCal bluefin isn't one technique. It's three, layered on top of each other by speed. Your cedar plug at 7 knots and your Madmacs at 13 knots are completely different tools built for completely different moments in the day. Running the wrong lure at the wrong speed doesn't just mean fewer bites — it means tangles, blown spreads, and a long ride home wondering what went wrong.
Here's how to build a spread that works across all three tiers.
Speed Tier 1: The Searching Troll — 6 to 9 Knots
You haven't found fish yet. You're covering water — running to your spot, watching the meter, glassing for birds, looking for temperature breaks on the gauge. This is the part of the day most anglers waste by having nothing in the water. Don't make that mistake.
Lead Masters Cedar Plug — Single and Daisy Chain
Keep a cedar plug in the water every time the boat is moving. Always. It is the single most underrated searching lure in SoCal offshore fishing, and we'll stand behind that without hesitation.
There's no logical reason a bare piece of wood with a hook should catch as many Pacific tuna as it does. No action, no rattle, no flashy finish — and yet it works, and there are days when it works better than everything else in the spread combined. We've seen customers come back having gotten zero bites on Madmacs while their cedar plug daisy chain got bit three times on the run home. Nobody fully understands it. What we do know is that the daisy chain format — which presents a staggered school-of-bait profile — tends to draw strikes from the bigger, more cautious fish that won't chase a faster presentation.
A few things that matter with cedar plugs that most people skip:
The hook has to sit correctly. The inside of a cedar plug isn't a perfect round hole — there's a slot, and the hook shank needs to sit in that slot for the lure to track right. If the hook is off-axis, the plug won't swim properly and you'll pull it all day without a bite. Take thirty seconds to check this every time you put one in the water.
Run ball-bearing swivels — double them if you can. Cedar plugs can spin at trolling speed, and without quality swivels you'll come back to a twisted mess of line that takes twenty minutes to deal with. This is the voice of experience talking.
Run these in the long flat line position, way back in the third or fourth wake, at a comfortable cruising speed. Do not push cedar plugs into the high-speed portion of your spread. They'll spin out, the action dies, and they become a tangling hazard for every other lure you have in the water.
While the cedar plug works the surface and near-surface zone, the Halco Laser Pro 190DD gives you a deep-diving bibbed minnow in the spread at searching speeds. Run it 50 to 100 feet back at a short flat line or off a short rigger. It digs down into the water column and presents a realistic baitfish profile while you're making your way to the target area. Good coverage at a speed that doesn't burn fuel and gives you flexibility to stop and investigate anything that catches your eye.
Speed Tier 2: The Intermediate Spread — 8 to 11 Knots
You've seen something. Maybe birds working at distance, maybe consistent bait marks at a specific depth band on the sonar, maybe a temperature break that lines up with where the fleet has been finding fish. You don't have confirmation yet — but you're in the neighborhood. This is when the DTX Minnow goes in the water.
Nomad DTX Minnow 220 Heavy Duty
The DTX Minnow 220 HD is the deepest-running hard-body lure we carry, and for suspended fish it's in a category of its own. When bluefin are sitting at 30 or 40 feet — which you'll see clearly on a quality sonar — a Madmacs can't reach them. A cedar plug can't reach them. The DTX can.
On lighter braid, 65 to 80 lb, set back 200 feet or more, the DTX 220 HD gets down 40 to 50 feet without any added weight, planers, or downrigger setup. That depth is what makes it the right tool for this speed tier, and it's something customers are genuinely surprised by the first time they understand it.
Two variables control how deep it runs, and both are in your hands:
Set-back distance. The further back you run it, the deeper it dives. Two hundred feet is your minimum for meaningful depth. Three hundred feet back on lighter braid gets you to maximum depth. Don't shortcut this — running it close means it's not doing what it's designed to do.
Mainline diameter. Thinner line creates less drag in the water, which lets the lure pull deeper. This is why we recommend 65 to 80 lb braid for the DTX specifically, even if you're running heavier line on your Madmacs rods. The difference between 80 lb and 130 lb braid can be 15 to 20 feet of diving depth. That's the difference between being in the zone and being above it.
One more thing on rigging: keep the hardware minimal. A clean loop-to-crimp on 3 feet of wire cable leader, connected to a quality swivel at the mainline. No bulky snaps, no heavy mono leader, nothing that adds mass or drag to the connection point. The Autotune system in the DTX needs to be able to move freely to center itself and track straight — too much hardware at the nose of the lure kills both the action and the depth performance. We've seen anglers over-rig this lure and wonder why it's not diving. That's almost always the reason.
The Heavy Duty designation matters for SoCal fishing. The standard DTX is a good lure. The HD version is built for a season of large bluefin: Metal Matrix Plate system replacing the standard through-wire construction, upgraded BKK Diablo 5X hooks with larger barbs for better retention, and a Diamond Armour shell that holds up when the fish have teeth. This is the lure you put on your long rod and leave in the water all day without worrying about it.
Spread position: Flat line, 200 to 300 feet back, or on a center shotgun rigger way back. Keep it away from the corner rods — when you ramp up to high-speed tier and deploy the Madmacs, you want the DTX on its own clean line with room to run.
Speed Tier 3: The High-Speed Run — 11 to 15 Knots
Now you're in fish. Boilers at distance, school on the meter, fleet radio confirming the area, or you've fished this zone before and you know what it holds. This is when the Madmacs go in, the throttle comes up, and you commit.
Nomad Madmacs Hyper Speed Trolling Vibe
We covered the Madmacs in detail in Part 1 of this series — the full size breakdown, the hook upgrade, the speed range. From a spread-building perspective, here's exactly how we'd set it up on a two-rod private boat:
Port corner: Madmacs 200 at 150 feet Starboard corner: Madmacs 200 or 240 at 250 feet
Stagger the distances. This is not optional — it's what keeps your lines from crossing during turns, and you will be making turns. When you're working around fish or swinging lures toward a school, tight turns are part of the program. At the same set-back distance, two Madmacs will find each other during every significant course change. At 150 and 250 feet, they stay clean.
The closer rod runs slightly more drag from the rod angle, which naturally creates a visual difference between the two lines and helps you track which is which during the fight.
Adding a third line: If your outrigger setup allows it cleanly, run the Halco Max 190 on a shotgun rigger at 350 to 400 feet. It's a bibless minnow that handles 12 to 14 knots without complaint, presents a different profile than the Madmacs, and has a track record on SoCal bluefin, wahoo, and dorado. Different distance, different depth, different look — variety in the spread is meaningful when fish are selective about what they'll chase.
Do not run cedar plugs at this speed. They'll spin, kill their action, and create a tangling hazard for every other lure in the water. The cedar plug stays in on the searching troll. When the Madmacs go in, the cedar plug comes out.
When You Hit Foamers
This is the moment the whole day builds toward, and it's also where private boat anglers most often blow the opportunity.
The instinct is to kill the throttle and get close. Resist it. Bluefin that are boiling on the surface are in a feeding frenzy — but they're also on hair-trigger alert for anything that feels wrong. Dropping your speed and driving into the school is the fastest way to put them down.
Instead: maintain trolling speed and maneuver the boat so your trailing lures swing toward the outside edge of the school. Keep the pressure on. The high-speed presentation is part of what triggers the bite — a Madmacs appearing at the edge of a boiling school at 12 knots is an entirely different visual stimulus than a slow-moving bait, and it works.
When a rod goes off, your immediate job is to get the other Madmacs in the boat. Clear the spread before you start fighting the fish. A hooked bluefin making runs in unpredictable directions with a second Madmacs still in the water at 250 feet is a tangled nightmare that usually ends in losing the fish and the lure. Clear everything, then fight the fish.
The Most Common Problem: Why Fish Come Off
High pull rates frustrate every angler who's new to this method. The fish eats, the rod bends, and thirty seconds later the line goes slack. Here's what's actually happening and how to fix it.
The hook upgrade comes first. We covered this in Part 1 but it bears repeating here because it's that important: replace the rear treble on your Madmacs before you ever put them in the water. Owner ST-66 4x strong — 3/0 for the 160, 4/0 for the 200, 5/0 for the 240. The stock barbs are small and at 200 yards of line and the force of a large fish running hard, they don't hold the way they need to.
Set the drag correctly before you deploy. At 250 yards of line, even quality braid has stretch and weight. If your drag is too light, the fish gets slack on the hookset. If it's too tight, it breaks off on the initial run. Set it firm enough that the rod is loaded at trolling speed, but with enough give that a hard-running fish can take line without the line parting. Get this right at the dock, not mid-fight.
Don't rush the fish. Once you're hooked up, let the fish run. Use the rod to steer and keep pressure — don't pump-and-wind hard until you can see the lure. Rapid direction changes during the early part of the fight are when hooks pull. Steady pressure beats aggressive technique every time on large bluefin.
The Full Spread at a Glance
| Speed | Lure | Set-Back | Position |
|---|---|---|---|
| 6–9 kts | Lead Masters Cedar Plug Daisy Chain | 3rd–4th wake | Long flat line |
| 6–9 kts | Halco Laser Pro 190DD | 50–100 ft | Short flat line |
| 8–11 kts | Nomad DTX Minnow 220 HD | 200–300 ft | Flat line / shotgun |
| 11–15 kts | Nomad Madmacs 200 | 150 ft | Port corner |
| 11–15 kts | Nomad Madmacs 200 or 240 | 250 ft | Starboard corner |
| 11–15 kts | Halco Max 190 | 350–400 ft | Shotgun rigger |
Screenshot this. Put it on your phone. Tape it to the console. It's the reference you'll come back to every time you're rigging up.
Get the Boat Set Up Right
The spread above is only as good as the hardware supporting it.
AFTCO Roller Troller Outrigger Clips Running lines off outriggers gives you better separation across the spread, cleaner angles on the hookset, and fewer tangles during turns. The Roller Troller releases smoothly when a fish eats — no shock, no jerk — so the fish loads the hook cleanly rather than feeling resistance from the clip and spitting the lure.
Lead Masters Quick Change Trolling Harness When fish start keying on one specific size or the bite shifts mid-session, you need to swap lures in seconds without re-rigging from scratch. This harness makes that a two-second job. We stock this because we've watched customers lose productive windows fumbling with connections while fish were in the area.
Izorline Rail Straps – Heavy Duty Rod & Reel Holder At high trolling speeds with a heavy bent-butt rod loaded against 250 yards of line, your rod holders are doing serious work. Quality rail straps keep your setup locked in at the correct angle throughout the troll and the fight. This is the kind of accessory that feels unnecessary until the moment it matters — and when it matters, it really matters.
Everything You Need Is In Stock
The full spread is available at TackleExpress.com right now. Ship it to the boat or come by the Santa Clarita store and we'll walk through the setup with you. We've rigged versions of this spread ourselves and we know what works out here.