When I guided on the South Platte River it seemed that at least one of my clients always had an RS2 on, and I would bet that half of the fish my clients caught were victims of this fly. Confidence in a pattern can make all the difference, and I have a lot of confidence in the RS2. The pattern that we will tie here is not Rim Chung’s original, but a variation that I developed over the years using alternative synthetic materials. Synthetics are, in my opinion, more durable, cheaper and easier to get, and more consistent than their natural counterparts. While the standard RS2 color is gray, this fly is also a killer in black, brown, and olive.