JZ,
I'm going to give you a fly pattern that is deadly.
I have come to believe that fish take this fly for a small crayfish.
Cascade Special (woolybugger)
Hook; Long Shank Size 12
Bead; Copper Metal. (pinch barb down and slide to head)
Tail; Burnt Orange Marabou and TWO copper color reflective fibers.
Hackle; Burnt Orange Grizzly.
Body; J. FAIR Short Shuck (burnt orange)Chenile.
The J. Fair company of Eagle Lake California is where I purchased the special color marabou, hackle and chenile. Hopefully this is their phone # (916) 825-3401. Look them up on the Internet also.
In early season cold water, a SLOW jerk retrieve can catch fish. When the water warms up the fish should be all over it!
Good Luck!
Doug P.S. Use a SA Intermediate Sink or for deeper water a Fast Sink Fly Line.
Enjoying the joys of others and suffering with them- these are the best guides for man. A.E.