Does your Damsel Nymph Fly Pattern Swim like the Natural?

From late Spring through summer, these drab green Damsel nymphs hatch into those electric blue flies we are familiar with. As nymphs, they are various shades of olive and are an important part of a trout's diet. Do a bit of pond dipping on your local trout lake to see the colours of the naturals, then you can match your patterns. Mainly, these flies are fished incorrectly, way too fast, like a lure. Oliver Edwards takes you through tying a pattern that will swim well and shows the retrieves that will yield better results.