The RS2 has been a staple of my fly boxes since I moved to Colorado in 1990. I became aware of it, when I purchased and read Fly Fishing the South Platte River by Roger Hill, and he gave the fly designed by Rim Chung many glowing recommendations. Up until this winter I nearly adhered entirely to the classic pattern. The only exception was a substitution of brown pheasant feather fibers for the tail instead of muskrat guard hairs. I landed many fish in the intervening twenty-seven years on this fly, but during the last couple seasons I encountered situations where I should have been attracting more attention from trout during the periods prior to strong blue winged olive hatches.
I made a mental note to research some alternatives prior to tying a new supply, and I fulfilled my vow several weeks ago. I searched the internet and quickly stumbled across a close cousin of the RS2 called the sparkle RS2. I liked the idea of maintaining the basic concept with the addition of some extra flash, so I produced three conventional RS2 nymphs and ten sparkle versions. For the sparkle RS2’s I substituted white fluoro fibers for the tail and a clump of white antron fibers for the emerging wing. The only material that remained from the original pattern was the muskrat dubbing. I am quite excited to try these enhanced RS2’s, as I believe the extra flash of the fluoro fiber and antron will cause the small baetis nymph imitation to stand out more during the time period prior to an emergence. I also experimented with a black crystal flash rib on five of the sparkle RS2’s, and I like the ribbed look that this addition created. I learned the crystal flash ribbing concept from the ultra zug bug pattern by Scott Sanchez.
The thirteen new RS2’s brought my total inventory to sixty, as we enter the 2018 season. Hopefully this supply will be adequate for spring, summer and fall blue winged olive hatch periods in 2018.