I am not an Oregon guy, but if I was heading to Oregon (week from Friday) I would tie a bunch of flies two to six inches long, in orange, purple, black and blue color combos. I would tie some full feather wings, a few married wings and strip wings and a few on shanks (trailer trash). I would not go up there without some marabous and bunnies, some weighted some not. My box would not be complete without a Dance Hall Floozy, Swing Shift and a Red Ween Gaddy tied on 3/0 AJs. Best to pick the fly you like and wrap it up. All you have to do is match water conditions. That is why I take a bunch off different sizes and styles.