The Lightning Strike Ultimate Indicator Yarn Fly Fishing Strike Indicator in FL Yellow is a popular choice among fly anglers for detecting subtle strikes, especially when nymphing or fishing with delicate presentations. Here’s what you should know about it:

Key Features:
1. Material – Made from high-visibility, buoyant synthetic yarn that stays afloat even in fast currents.
2. Color (FL Yellow) – Fluorescent yellow for excellent visibility in various water conditions.
3. Adjustable Buoyancy – Can be trimmed or fluffed to customize buoyancy based on fly weight and water conditions.
4. Easy to Attach – Typically used with a small rubber or silicone “O-ring” to secure it to the leader.
5. Sensitive Strike Detection – More responsive than foam or plastic indicators, helping detect light takes.
How to Use:
1. Thread the Yarn – Pull a small amount of yarn through an O-ring or tippet ring.
2. Position on Leader – Place it 1.5–2x the water depth above your fly (adjust based on drift).
3. Fluff for Buoyancy – Spread the fibers to increase floatation if needed.
4. Watch for Movement – A pause, dip, or unnatural drift often signals a strike.
Pros:
✔ Highly visible in low light or murky water.
✔ Less splash than hard indicators, spooking fewer fish.
✔ Reusable and durable.
Cons:
✖ Requires occasional re-fluffing to maintain buoyancy.
✖ Not as buoyant as foam for heavy rigs.
Best For:
– Euro nymphing and tight-line techniques.
– Delicate presentations where traditional indicators might scare fish.
– Shallow to medium-depth rivers and streams.
Alternatives:
– New Zealand Strike Indicator Wool (similar but often bulkier).
– Cork or Foam Indicators (better for heavy rigs but less sensitive).
Would you like recommendations for rigging or specific fishing scenarios?