Ken, when we were deer hunting in Wy. we camped on the Greys River. It's a world class fly fishing river. You MUST use artificial flies AND they must be barbless (at least that's what my cousin told me).
Personally, I don't care what/how the fish is caught. If someone asks, just tell them you won't divulge your secret, but you can tell them that you were "matching the hatch".
In a box somewhere around here I have flies that are tied on size 28 and size 30 hooks.
