Lesson 3. Suspended Trout Rule
You can improve your odds in sight fishing by casting at the right fish. What do I mean? Say you've spotted three fish in a run. Two of them are essentially glued to the bottom, not moving much, while the third is suspended halfway up the water column, weaving back and forth, eating naturally. That's your player, and it should be your target.

In one situation, Mardick was casting at a group of several fish, but only one of them was visibly suspended in the feeding lane. Instead of dredging the run for the fish on the bottom, he lightened his weight so the flies would drift midway up the water column. Sure enough, that fish ate it on the first drift. This happened just a few feet in front of my face.

Too many anglers make the mistake of chasing the biggest fish they see. If that big fish is hunkered down, you're wasting an opportunity. Catch the fish that's eating, then add another split shot and frustrate yourself by chasing difficult-to-catch bottom dwellers.