Sequoia has been guiding on the Crooked River quite a bit and reports to me that the fish are looking up to x-caddis and eating a black 2 bit hooker on the nymph rod. I had some good guys on the lake a couple of days ago and they had been having continued success on the Ray Charles and perdigons. 
I wonder if the fish are eating the Ray Charles as a scud or as a sow bug? My guess is scuds, as this river has such a great population them! 
Zebra midge, rainbow warrior, fire starter, skinny nelson and amber colored psycho prince are some other great nymphs to run under your indi, or tight line the euro rod. 
2 other things to fish are soft hackles and small euro jig streamers. Given the choice, the soft hackle on the Crooked is one of the best places in Central Oregon to swing one.