The Jig CDC Thrasher in olive from Montana Fly Co. pairs soft CDC fibers with a 2.8mm bead on a jig hook. The CDC breathes in the current while the bead and jig format get it down fast in Euro rigs.
Fish it tight-line through pocket water and seams. Size #18 with a 2.8mm bead is a balanced small-fly setup for technical trout.