I probably use the Comparadun/Sparkle Dun for at least 75% of my dry fly patterns these days. I find them to be extremely effective.
I think one version that Caucci and Nastasi detail in their book is not used that much. It is the Hackled Comparadun. It is for faster water and also allows a bit of “skittering”. Anyway, I am tying some up for a stretch of water with riffles.
Byron, I have fished and tyed a variation of that style for years and agree that it is one of the most effective patterns on most waters. I use moose body hair for the tail and v-notch the bottom of the hackle.
Since one of the uses of hackle is to simulate the legs and I believe that is one of the purposes of the winging style of the Comparadun, what are the advantages of using both other than more floatability?