Actually the very reason I had bought this material is to tie Royal Coachman Wet. This neck feathers are truly natural beauty.
Then I couldn't pass by the crest feathers. They have nice flash and are stiff enough and curved perfectly to make nice tails for soft-hackles. And I was glad to see when I found out that I'm not the only one who sees that way. Royal Coachman Wet above can be adapted into a steelhead version by these lovely fibers.
With the same idea, I also developed my own "Coyote" into a steelhead version.