Red Spot CDC Sedge also developed by Peter Durisik, on of the most famous tiers from Slovakia is made for fishing grayling and trout in rivers with high pressure waters. This fly is made it is made very interesting: with tails, which is not specific to these flies. But the fly is very effective, it seems that those tails attract the interest of the fish very well. Those tails probably mimic the transition from a nymph to an adult state. For this reason, I fish this fly as well as a wet fly.