The Fall River is good, but late morning to mid afternoon it typically gets crowded this time of year. 
We have been doing really well on streamers fish Euro Style. Of course Perdigons, Eggs, Zebra’s, 2 Bit’s and Micro mayflies. We have a little brownish-gray mayfly nymph in our Lake Box that is a damn fine Fall River pattern, I suspect because it is tied feather duster style and has a lot of breathing gill movement when its being fished. 
Fish are looking up for dries, the PMD hatch is good, Midges are good, Tan Caddis are hatching or egg laying in the morning and evening and often a olive Elk Hair Caddis or Henryville Caddis fished well even mid-day will be a fish fooler. Also, if you haven’t tried a hot orange Missing Link on the Fall River, you ought to do it. No fly is the magic Bullet, but that fly is one they will rush up to eat. 
Don’t forget your terrestrials. All of ’em. Ants, Beetles, Hoppers and ever Yellow Jackets.