F-C Marabou Leech

from Ed Story’s Missouri Trout Flys: How to Tye and Fish Them

Hook: #10
Thread: black (or to match body color)
Tail: marabou (here yellow)
Body: marabout short (here olive)

Head cement recipe:
Goop
Xylene (epoxy thinnner)

Instructions:
Fill a quart jar half full with Xylene
Squeeze a tube of Goop into the Xylene
Shake until the Goop is dissolved; add Xylene to desired consistency

Apply with a pin or needle dipped in the liquid

https://youtu.be/AJbvJUixaCs