Re: crayfish fly
You might try the Clouser Crayfish - I have had pretty good luck with them for Indiana Smallies. I've never used them on Steehead though. For a picture, Google 'Umpqua Flies' then go to bass - subsurface flies and they have several to look at. Hope this helps.
"...let me introduce an idea-just something to kick around: Maybe your stature as a fly fisherman isn't determined by how big a trout you can catch, but by how small a trout you can catch without being disappointed, and, of course, without losing the faith that there's a bigger one in there. " -John Gierach, from Fly Fishing Small Streams by Stackpole Books.