Kevin, sorry it took this long to get back to you, yes its dyed argus that I am using to get the effect that you mentioned. I have alot of colors dyed so I have been incorporating into some of my flies and along with the Kori I like the effect. Don't know what others think, but it is a little different effect in the wing and tail that I like. To me its these small things that can make a regular fly pop. Thanks for the comments on my flies and hope all is well, wishing you the best over the holidays.
Bob