1. Attach an indicator at the butt of a 3X leader. Tie on a size 8 weighted stonefly nymph [a] to the end of the leader. On the hook bend, tie 2 feet of 4X tippet with an improved clinch knot. At the terminal end, tie on a size 12 Hare's Ear [b] or a size 12 Sparkle Pupa [c]. The leader should be 1 to 2 feet longer than the water is deep, depending on the current speed.
2. Cast upstream and present the nymphs drag-free. When a fish takes, the indicator will twitch, hitch, or sometimes just stop.