I would never wish to be caught without a sufficient supply of RS2’s in the spring and fall in the western United States. The RS2 imitates the nymphal stage of the baetis mayfly along with a myriad of other small mayfly nymphs. My fleece wallet contains the classic RS2, sparkle wing RS2’s, and small RS2-size soft hackle emergers. They all work, but in spite of the additional flash of the synthetic versions, the classic RS2 continues to perform at a high level. For this reason I always count my supply and tie replacements.
Here is the link to a previous post that contains additional background information and additional links to related narrative. The classic RS2 is a simple tie, as it only contains three materials besides the hook, thread and bead. I can whip these out in no time, and I did just that recently to produce seven new models. The need to generate seven indicates that I suffered some shrinkage during the past season, and this is proof that the classic RS2 remains an often utilized fly in my fleece wallet.