Fishing is great one day, then kinda tough the next. Water conditions are perfect! The Sac is fishing exactly like it does in July. Good for better anglers, demanding for the novice. Great hatches of caddis and mayflies happening at last light and in the early mornings. Most fish are eating nymphs like #14 Cinnamon Poopahs, #18 Olive Pheasant Tails.. Rubber Legs in #6-6 are always a top producer. The Fly Shop (530) 222-3555