Rigs
Building a lough leader
What it's for
The team of three tells you what hangs where; this is the leader itself. The Irish build is simple on purpose: a short stiff butt off the fly line, then level fluorocarbon — around 15 ft of 5–6 lb — with the droppers cut in by water knots. No taper to die, nothing to rebuild at the bank: trim, retie, fish.
The beats
The butt
Two or three feet of stiff, heavier nylon between fly line and leader smooths the turnover and takes the wear of the loop. Some anglers taper here; a level butt is simpler and casts a team just as well.
Level fluorocarbon
The working leader is one diameter end to end — around 5–6 lb for Irish wild browns, finer than most reservoir habits because the water is clearer. On Corrib in bright weather the local counsel runs to 4 lb.
Cutting in droppers
Water knots (three turns), leaving the down-facing tag 4–6 inches: long enough to change flies twice, short enough to stand proud of the leader instead of wrapping it. Below 0.22 mm, avoid blood knots for joins — they cost too much strength in fine material.
The spacing
Five feet from butt to bob, five to the middle, five to the point: 15 ft, three flies, evenly spread. Fishing near the surface, keep the gaps generous; going deep, they can close up.
Trim for the day
Big wave: drop to two flies and shorten toward 12 ft — turnover and control beat coverage. Flat calm and clear: stretch to 18–20 ft, go finer, and degrease the lot so it cuts through the film instead of flashing in it.
Common faults
A leader flashing in the film
Calm-day fish rise to the bob, follow, and turn away at the last moment — or boil short without touching; the leader is lying on the surface catching the light.
Fix: Degrease the leader — proprietary sink paste or plain bankside mud both work — every ten to fifteen minutes in flat calm. A sunk leader disappears; a floating one herring-bones the film over every fly you own.
When you'll use it
- Setting up for any drift the Tactical Card sends you out on — this leader carries every three-fly team in the app
- Rebuilding fast after a break-off: level material means no formula to remember
- Competition days: international (FIPS) rules exempt lake fishing from their leader-length cap, and the Mask World Cup asks only 2–4 flies on single hooks — but always check the card
- Flat-calm evenings when leader flash, not fly choice, is what's beating you
Related
Terms: leader · tippet · breaking strain · point dropper bob fly
Sources & how we know this (6)
- Irish traditional wet team: 3–4 flies on 15–20 ft, floating or intermediate; water-knot droppers for easy changes
The Floating Fly — Tom Doc Sullivan on lough style · 2026-07-16 - 18 ft leader for a two-dropper wet cast; tag lengths 4–5 in (longer in calm, shorter in wind); avoid blood knots below 0.22 mm; spacing wide near the surface, tighter at depth
Trout & Salmon — Stan Headley, Tips for better droppers · 2026-07-16 - Corrib wild browns on ~4 lb (5.5X) fluorocarbon in clear bright conditions, guided by Corrib View Lodge
Fulling Mill — Masterclass fluorocarbon at Lough Corrib (Kieron Jenkins) · 2026-07-16 - Three-part construction: heavier nylon butt looped to the fly line, then a level fluorocarbon working section with long-tag dropper knots
Claretbumbler — Leaders (West of Ireland practice) · 2026-07-16 - World Cup (Lough Mask) rules: not less than 2 and no more than 4 flies, single hooks; no leader-length rule
World Cup Trout Fly Angling Championship — Rules · 2026-07-16 - FIPS-Mouche 2025 Art. 28.1: leader capped at twice rod length except the lake fishing and dry fly sectors
FIPS-Mouche — Competition Rules 2025 (official PDF) · 2026-07-16