Those are spectacular! I got my mallard flanks. Tied a few up last night. They look a little like a trout already got them, but I think they'll still fish. Practice....I'll be curious how well the wings actually do hold up.
I normally tie this pattern with Cree hackle tips which I have not had a problem with durability. I guess I will have to find out how durable they are and if they are not it gives me a excuse to tie more. When I fish this pattern the fish I’m targeting I don’t care how durable the fly is as long as I rise or land one. Also I’m having fun with a new technique and applying it to different patterns.