How to Rig a Squid Jig: Leader, Knot, and Snap

A properly chosen squid jigging rod, reel, and line still won’t fish right if the rig connecting them is wrong. The knot joining braid to leader, the leader itself, and how the jig attaches at the end all matter more here than in most other kinds of fishing — squid jigs are light, squid have sharp vision, and a bad connection either kills the jig’s action or gets seen and refused before a squid ever commits.

The standard rig, start to finish

The working setup, laid out by Proshop TST’s rigging guide: PE braid → FG knot → fluorocarbon leader → snap → squid jig. Every piece has a reason to be there.

• Mainline: PE braid, 0.6–0.8 for shore work (matching the tip-run range covered in our rod guide).
• Leader: fluorocarbon, 1.5–2.0 Japanese sizing — roughly 6–8 lb test — running 1–1.5 meters long.
• Connection: a snap between leader and jig, not a direct knot to the jig, so you can change jigs fast without re-tying.

Why fluorocarbon, and why that length

Fluorocarbon isn’t a preference here — it’s close to invisible underwater compared to nylon or straight braid, which matters directly against a squid’s vision. Proshop TST frames the length the same way: 1–1.5 meters gives enough fluorocarbon in the water to actually be invisible near the jig, without running so long that it makes casting the light jig awkward. Go shorter and the braid itself gets close enough to the jig to spook a wary squid; go longer than necessary and you’re fighting the leader through your guides on every cast.

Under pier lights at night specifically, leader choice matters even more — bright artificial light makes a heavy or visible leader stand out far more than it would in daylight water.

The FG knot: why it’s the standard

The knot joining braid to leader is the FG knot, and it’s the standard for a specific reason: Sunline’s animated breakdown of the FG knot and Cast & Spear’s guide both point to the same core advantage — it’s genuinely one of the strongest braid-to-leader connections available, and critically, it has an extremely low profile. That matters specifically for squid jigging: a bulky knot catches on rod guides on the cast, and with a light jig, that catch can kill distance or even cause a tangle right at the moment you’re trying to work a shadow line under a pier light.

It matters even more on a genuine squid jigging rod than it would on a general-purpose spinning rod. Real squid jigging blanks (what’s called an eging rod in Japan) run smaller-diameter guide rings on shorter frames than a standard spinning rod — often micro guides in the 1–4mm range — specifically because thin PE braid doesn’t need big guides to flow freely, and the smaller, lighter guide train helps with the sensitivity and reduced overall weight the technique depends on. That’s good for casting and feel, but it leaves noticeably less room for a bulky knot to pass through cleanly. A double uni that ticks through a standard-size guide without much trouble can genuinely hang up in a micro guide. The FG knot’s low profile isn’t just a nice-to-have on this gear — it’s close to a requirement once you’re fishing a rod actually built for it rather than a general-purpose blank.

The FG knot takes practice to tie cleanly — it’s a friction knot built by wrapping the leader around the braid rather than a simple loop-through connection, and it’s genuinely awkward the first several times. It’s worth learning properly rather than skipping, since it’s the connection everything else in the rig depends on.

If the FG knot isn’t clicking yet: a double uni knot will do the job as a fallback. Cast & Spear is upfront that it’s bulkier and can “tick” through your guides on longer casts, which costs you a little distance and smoothness — but it’s a real, fishable connection while you’re still practicing the FG knot, not a compromise that’ll actually fail on you.

Putting it together

None of this is complicated once it’s rigged — the point of the FG knot and the right leader length is that you tie it once per session (or once per leader change) and then it’s just working gear for the rest of the night. Get it right and the rig disappears from your attention entirely, which is exactly where you want it: focused on reading the shadow line and feeling the fall, not wondering whether your connection is going to hold.