I guided Fall River with long-time clients Dick and Chuck today.  There was a thick hatch of small baetis in the morning.  These are size 20-22 white-winged mayflies.  The fish love them and they are tough to imitate.  Our best fly for this hatch was a size 20 cream parachute.  The big fish were rising in the shallow weedbeds where a dead drift is tough to get.  We hooked a few, but had better luck from 11-2pm when the bigger bugs started hatching.  The big bug is a size 16 olive PMD.  We had fun casting to rising fish until about 2pm.  The nymphing was good in the mid-afternoon.  We caught fish on small pheasant tails, olive micro mayflies, baetis nymphs, and anato-mays.  Several fish came off in the weeds, but both Dick and Chuck landed nice fish today.  Chuck and I finished the day with some great short-line nymphing on the Pit.