Why it matters
It gives technical trout boxes a proven answer when fish are keyed on smaller food near the film.
Fly pattern
RS2
A sparse emerger that teaches restraint, fine material handling, and just how little it can take to fool selective trout.
A delicate pattern that sharpens light-touch tying
EmergersIntermediate#18-24
How to keep the profile sparse while still supporting the wing and thorax
How to slow down and use the checklist when every wrap changes the silhouette
RS2 in one organized view.
This page is structured to stay useful as a real reference source: what the fly is, where it fits, what materials or steps are publicly available, why anglers keep it around, and where to go next in the Blue Wing Labs knowledge graph.
When to use it
Use it when trout are focused on tiny insects and you want a fly that can live between categories.
Category
emergernymphtroutmidgemayflyclassictechnical wateryear round
What the app keeps with RS2
This section brings over the same recipe-shape context the app uses: hook guidance, core material logic, substitutions, and tying-sequence checkpoints.
Hook
Straight-eye dry fly hook
Dai-Riki 310 style • #18-24 • The sourced RS2 recipe uses a straight-eye dry fly hook and keeps the profile very sparse.
Core materials
What stays consistent
olive thread, white or dun microfibbets, light olive superfine dubbing, white or gray CDC wing
Substitutions
Accepted swaps
Change dubbing and wing colors to match local mayflies or midges
Sequence
Canonical tying flow
Start the thread and build a smooth base, Tie in two split microfibbets for the tail, Dub a slim light olive abdomen, Tie in a small CDC wing, Finish with a tiny dubbed thorax and sparse head
About RS2
This section keeps the explanation practical and source-backed, using the structured library data plus broad category context without inventing unsupported technical detail.
Overview
RS2 at a glance
A sparse emerger that teaches restraint, fine material handling, and just how little it can take to fool selective trout.
Context
Box role
RS2 sits in the emergers section of the Blue Wing Labs public library, where it helps anglers compare related patterns without losing track of the bigger category. A small transition-zone pattern that bridges nymph and emerger logic.
Context
Pattern context
A delicate pattern that sharpens light-touch tying. In practical terms, it supports film-level feeding and transition-stage insects while staying easy to place inside a more organized fly box.
Context
Pattern context
Blue Wing Labs frames this pattern around a few repeatable checkpoints: How to keep the profile sparse while still supporting the wing and thorax; How to slow down and use the checklist when every wrap changes the silhouette.
Context
Pattern context
Because RS2 is also treated as a classic pattern in the library, it works as both a fishing fly and a reference point for understanding how this category is supposed to look and behave.
When to use RS2
The public site only states broad usage windows, but those windows still help anglers keep the fly in the right part of the mental and physical box.
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Use it when trout are focused on tiny insects and you want a fly that can live between categories.
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At the category level, emergers shine during mixed rises, technical feeding, and any session where trout seem close to the film.
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It is especially worth considering when trout are feeding selectively and smaller presentation details start to matter more.
Why RS2 works
These points focus on the fly's role, visibility, versatility, and category logic rather than overly specific claims the public dataset does not support.
Fishing condition insight
When RS2 earns the tie-on
Use it when trout are focused on tiny insects and you want a fly that can live between categories.
EmergersIntermediate#18-24
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It gives technical trout boxes a proven answer when fish are keyed on smaller food near the film.
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It covers the in-between feeding window where trout are not fully on nymphs or fully on high-floating adults.
Watch RS2 in motion
When the app includes a lesson video, the public page links to it directly so anglers can move from reference reading into step-by-step watching.
Blue Wing Labs lesson
Learn this pattern step by step
Open the linked lesson to compare the public recipe, the tying sequence, and the app's guided teaching flow for RS2.
Watch the video lessonMaterials for RS2
These materials come from the app-backed fly record when available, which lets the public page mirror the practical tying list more closely.
Material readiness
Prep RS2 before the first wrap
Lay out the core emergers materials before starting so the fly stays balanced and the sequence feels calmer once the vise is loaded.
Dai-Riki 310 straight-eye dry fly hookOlive 6/0 or 140D threadWhite or dun Microfibetts
Material
Dai-Riki 310 straight-eye dry fly hook
Size 18-24
Material
Olive 6/0 or 140D thread
Thread body foundation
Material
White or dun Microfibetts
Two split tail fibers
Material
Light olive superfine dubbing
Abdomen and thorax
Material
White or gray CDC puff
Sparse wing
How to tie RS2
The website now uses the app-backed step list where available so the public page follows a fuller tying sequence instead of only a short summary.
Pattern intelligence
RS2 is easier to repeat when the sequence stays organized
Work through the published steps in order and keep the fly's key proportions stable. A clean sequence usually matters more than adding extra motion at the bench.
10 visible steps5 visible materialsEmergers
Step 1
Start the olive thread with as little bulk as possible and form a smooth thread base.
Step 2
Tie in two white or dun Microfibetts at the bend so they extend evenly behind the hook.
Step 3
Use thread wraps to split the tail fibers and check them from above before moving forward.
Step 4
Trim the tail butts neatly and keep the shank smooth for the sparse body.
Step 5
Dub a very slim light-olive abdomen forward, stopping before the front third of the hook.
Step 6
Prepare a tiny white or gray CDC puff and tie it in so the wing leans slightly back.
Step 7
Use a few thread wraps to control the wing angle without building a bulky head.
Step 8
Add the smallest possible touch of dubbing to create a subtle thorax behind and in front of the wing.
Step 9
Keep the eye clear and stroke any CDC fibers into the sparse in-the-film posture.
Step 10
Whip finish with the smallest head you can manage and trim only the excess fibers that break the RS2 silhouette.
Variations and similar patterns for RS2
The public fly library does not invent named variations where the source data is thin. Instead, it connects this pattern to nearby flies so anglers can see the surrounding shape of the category.
Comparison note
How to read this section
RS2 also carries app recipe notes around pattern context, and it connects the pattern to nearby flies like Parachute Adams, Elk Hair Caddis, and Pheasant Tail Nymph. Those comparisons help anglers understand how the fly sits inside emergers without inventing unsupported detail.
Variant note
Pattern context
The original RS2 was developed by Rim Chung Modern versions often vary body and wing color while keeping the same sparse silhouette
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dry flies
Parachute Adams
A visible attractor dry that remains one of the easiest all-around trout patterns to keep in a box.
Why it matters
It is a benchmark confidence fly that helps anglers cover a lot of water without overthinking the surface game.
When it fits
Use it when you want a dependable dry that feels broad, visible, and easy to fish with confidence.
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dry flies
Elk Hair Caddis
A practical caddis dry that stays visible, buoyant, and easy to keep in rotation.
Why it matters
It gives the box a simple caddis anchor that still feels useful across a wide range of trout water.
When it fits
Use it when caddis are in the conversation or when you want a visible, fishable dry that is easy to read.
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nymphs
Pheasant Tail Nymph
A classic mayfly nymph that belongs in almost every organized trout library.
Why it matters
It teaches category logic while still covering real day-to-day trout fishing.
When it fits
Use it when you want a dependable mayfly-leaning nymph that never feels out of place.
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nymphs
Hare's Ear Nymph
An all-purpose searching nymph that keeps the trout box broad without becoming confusing.
Why it matters
It pairs well with slimmer nymphs and helps cover general searching situations cleanly.
When it fits
Use it when you want a nymph with broad utility and classic box value.
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dry flies
Blue Winged Olive
A slim mayfly dry that gives trout boxes a reliable small-profile surface option.
Why it matters
It gives the library a clean mayfly anchor that stays easy to trust and easy to organize.
When it fits
Use it when trout are feeding near the surface and a smaller mayfly look belongs in the mix.
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streamers
Woolly Bugger
A classic streamer that covers a huge amount of practical fishing with very little extra explanation.
Why it matters
Few flies are as useful for both beginner tying and long-term fly-box value.
When it fits
Use it when you want a first-stop streamer that can prospect and cover water almost anywhere.
Related guides for RS2
These guides connect the pattern back into broader beginner, trout, seasonal, and category-level decisions.
Guide
Top Midge Patterns
An organized list of midge patterns that help anglers cover both surface and subsurface trout feeding with more confidence.
Guide
Top Mayfly Patterns
A structured mayfly-pattern guide covering dries, nymphs, and emergers that belong in a well-organized trout box.
RS2 questions that help AI and anglers alike.
What category of fly is RS2?
RS2 is grouped under emergers in the Blue Wing Labs knowledge hub so anglers can compare it with related patterns and broader category guidance.
When should anglers use RS2?
Use it when trout are focused on tiny insects and you want a fly that can live between categories.
Is RS2 a beginner-friendly pattern?
RS2 is listed as intermediate in the public library, so it may ask for a little more experience than the simplest entry-point patterns, but it still fits into an organized learning path.
Why does RS2 still deserve space in a fly box?
It gives technical trout boxes a proven answer when fish are keyed on smaller food near the film.