1. Angler casts well above fish, keeps rod tip down as nymph falls to bottom of streambed.

2. As nymph bumps downstream, angler continually raises rod tip to take up slack line and keep nymph on bottom in front of trout.

3. As nymph passes fish, angler lowers rod tip to allow nymph to drag along bottom going downstream in case other trout are present in tail of pool.