Dax and I took our guide school students to the Pit River today.  The nymph grab was on from the get-go.  We took wild rainbows from 8-17" on a variety of nymphs, including black stones size 12, copper johns size 16, and black birds nests size 14.  Pretty much anything worked!  Flows are at about 330cfs in Pit 3.  Wading is challenging but not impossible.  The Pit is our most consistent summertime freestone fishery.  Give it a shot!