The CDC Comparadun pattern has been one of my go-to patterns for a long time. This fly is the ultimate in simplicity and lends itself well to a variety of mayfly species. You can simply change the colors of the materials to match everything from Pale Morning Duns to Baetis to Green Drakes, while still using the same overall pattern. I especially like this fly for small flies, like autumn Baetis and the like. The CDC wing gives the pattern good floatation and visibility but doesn’t add so much bulk that it makes the fly look too big to the fish. One thing to keep in mind when fishing this, or any other CDC pattern, is to use Frog’s Fanny desiccant to treat the pattern both before and during fishing. Once you’ve caught a fish, be sure to RINSE THE FLY OFF IN THE WATER to eliminate the fish slime, dab it dry on your shirtsleeve and dust with Frog’s Fanny. This has been the best process I’ve found for keeping the CDC wing in good shape and floating high. I know this pattern looks simple, and it really is, but don’t let that look dissuade you from tying and fishing them. This really is a great pattern and is something I don’t leave home without.