I fished with Bob & Don from Livermore on the Lower Sac today.  We floated Posse-Anderson.  We didn't get a lot of fish today, but there were some really nice ones.  The best was a 19-20" silvery buck rainbow that looked like a mini-steelhead.  There was very little traffic on the river today.  Best flies were a flasback PT, tan poopah, and olive S&M nymph.