When contact nymphing it is useful to be able to convert to a suspension nymphing system to widen the area where a drag-free drift is possible. This video shows how to make a wool-yarn-based Detachable Strike Indicator (dubbed a DSI), that can be mounted on a leader and removed without damaging or kinking the leader. A DSI enables rapid shift from contact to suspension nymphing and back.
A DSI is placed on a leader between silicone bobber stops that enable it to be slid up or down the leader to adjust the suspended depth. The bobber stops are placed on the leader before it is tied to the monofilament based sighter system and remain there while fishing with or without a DSI.
The bobber stops remaining on the leader can be used to advantage as moveable markers or sighters on the leader making it possible to drift flies at a known depth-- and at the same time closely monitoring the bobber stop sighters placed just above the flies for strikes.
Materials needed:
1. Sewing needle to mount in fly tying vise
2. Thread in same color as wool. Use a lower denier thread like a 50 or so to make it easier to remove the DSI from the needle.
3. Sculpin Wool
4. Quick Change Spinner Snaps
5. Braided fishing line (better), but also fly line backing or monofilament.
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Gone Fishing, troutracker[at]yahoo[dot]com
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Chapters
00:00 Why Make a Detachable Strike Indicator (a DSI) using Wool Yarn?
1:03 All That You Need to Know to Tie a Detachable Strike Indicator (a DSI)
6:12 Mounting a DSI on a Leader
8:50 Diagram of a DSI Enabled Contact Nymphing Leader System
9:14 One Source for Bobber Stops
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