Maybe it’s a western thing. On my first trip to Montana, I hired a guide since I had no idea of where to fish, and I needed a teacher for my nephew, since he was a first time fly fisherman. We were in the West Yellowstone area in late June. Most of the rivers were still roaring from the spring runoff. The guide took us to the Madison River, which was bank full, but fairly clear. When I saw the condition of the river I thought he was nuts, but he told me this will be some of the best fishing I have ever seen. He told me to fish in the margins of the stream inches from the bank and slap down my bugger with each cast. I did that, and time and time again a big rainbow would attack as soon as it touched down. Between the high water and the big fish, I believe that day I was into my backing more than any other day I have ever fished. I’ve tried it since, and it has never really worked that well. It probably scares more fish than it catches, but during high water you may want to give it a try to get the fishes attention.