Damselfly nymphs and adult (dry) patterns seem to bring the most consistent action on just about all of these. We fished Sand Creek Ponds a couple of days ago. The best fishing was during the rain on Tuesday, 8/2. See a fish rise, cast a damselfly nymph to it, and you would have a take. Fishing slacked bit the next day, but was good enough to keep us on the water until evening. Even caught a few on dry damsel patterns. We saw a few speckled duns, but no gulpers to speak of. When they begin on this and any reservoir fishing will be very interesting.