I was  not here this weekend but this is the common theme I heard about it. This report is from a Guide and friend of ours, Josh McFadden:

Well I arrived at the water a little after 10. Came rigged up with an egg and nymph dropper. A few half hearted takes and that’s about it. Then the sun was gone for the day at about 11. That’s when the Blue Wing Olives Poured Off. I fished a small olive dry for 3 hours solid in the afternoon until about 2:30 or so. It was on. Big heads taking dries. I had this particular stretch of water to myself. Passed a few guys getting there. But they never moved. It was sight fishing
small dries to rising fish all afternoon. It was almost like you could pick out which one you wanted. I want that one…… Zing… Fish On. It was hot and heavy like that for a good 3 hrs. I feel badly that no one came with me. Because Every Blue Wing Olive for the whole year hatched and died in front of me today. It was awesome. I really needed a day like this after a few weeks of 8 inch browns. No real monsters. But good fish a plenty. Several Stocker Rainbows, Few Wild Rainbows the Rest we’re better sized browns. Brought a solid 20 fish to hand, LDR’d A bunch, Leadered Several Good Fish didnt’ want me to touch em I suppose. Suprisingly I didn’t miss many fish today. When they went for it …. they took it. Good Times
Sorry only two fish pictured here. I got several shots of these.
Too busy putting on more frogs fanny to take many pictures

Big Fish Blake said the same thing.

RodC