The RS2 is an essential tailwater midge or mayfly pattern and a killer emerger. This pattern is known for its simplicity and effectiveness, particularly in imitating small aquatic insects like mayflies and midges.

To fish with the RS2, cast it delicately onto the water's surface, especially in areas where you see rising fish or signs of insect activity. This fly is commonly used for selective trout that are feeding on emergers or small insects near the water's surface. The RS2's slender and realistic profile makes it an excellent choice for fooling finicky fish.

You can present the RS2 using various techniques, such as dead-drifting, swinging, or twitching, depending on the specific insect you're trying to imitate and the fish's feeding behavior. It's a reliable pattern in both rivers and stillwaters and is effective throughout the year, making it a must-have for any fly angler.