Dan tied on a size #14 blue dun (or another narrow profile, large-winged dry fly in that blue-gray color), knowing that the “rafting” of the midges was what turned the trout on. Cast the larger bug a tad farther upstream, then let the naturals cluster on the fly … you’ll make a “meatball” of food for the trout, and they’ll eat it. In fact, they prefer the clusters over that single, small dry fly, even if it is a spot-on pattern. It’s the “more protein with less effort” rule in action. Key on this line of thinking and you will catch more fish during those prolific midge hatches.