Not much has changed on the Lower O. The flows are at 102 cfs and the fishing has been good for those that time the hatches right. BWO's have been hatching at 10 AM and the Caddis have been hatching around Noon.?? Try #18-#22 Gray or Tiger Midges,#17 Tan or Olive Sparkle Caddis Pupa, #18-20 Black R/L Copper John, #20 Olive Copper John and #18-#20 Pheasant Tail. You do need to get your nymphs down. One medium split shot is enough. There has been some dry fly activity as well. Size 20-22 Adams or BWO imitations should bring up some fish. Griffith's Gnats are a good choice for the midges. If any caddis are emerging use an Elk Hair Caddis.