Lesson 6: Attractor Flies Work
I always fish two flies on a nymph rig. The first, suspended about a foot below my weight, is a larger attractor fly, like a pink San Juan worm or a Copper John. Then I tie another 12 to 18 inches of tippet to its hook shank and attach a smaller fly, a "morsel," on the bottom. This is my standard rig in fast water and often in slow water as well. In really slow, clear water, I use two small flies.

In theory, the first fly grabs the fish's attention, and when it investigates, it sees the second one and eats it. Sounds like a stretch, but I witnessed this playing out. I positioned myself on the bottom about 4 feet downstream and slightly to the side of a big rainbow trout. Mardick cast, and I watched the fish notice the flies, turn around and swim right past me, as if to say, I'll be right back, I have to check this out. He followed them (a yellow stonefly and a small red Copper John), apparently decided against eating them, then went to the exact spot where he'd been holding before. On the next cast, the flies swung by me, the fish turned and trailed them out of sight, then came swimming up the run right to his original spot. After the third cast, the rainbow cruised by again, following the flies, only this time, he didn't come back. I surfaced to see Mardick and Bartkowski netting the fish. He had eaten the bottom fly, falling victim to curiosity.