My review for these peridgon is the same as for the yellow variation also tied by Cesar Dominguez -- they are extremely effective. I used them on a bright day in deep, clear water and found them to work well. These are slightly different from any fly I tie myself, as they feature a frayed flashy tail that offers something new and apparently appealing to the trout. Like the other flies from Cesar they are very durable. I hope TFF continues featuring excellent custom flies from competitors like this. Not only do they fish well, I can learn something from looking at these flies and learning how they've constructed such a solid fly.