The spinner thing under a float also works for steelhead in the Vedder (in south BC). Have seen a number of fish taken this way up there. On that stream, folks use unweighted Colorado type spinner blades. The spinners attached to about 2-3 ft of leader, then your float weight, followed by however amount of line to your float, depending upon the depth of the drift. Free line it down slowly, leaning on the float. I've been thinking about giving this a try with dick nites for silvers this fall.