Here is Crane Prairie report I got from a customer yesterday:
Wanted to say thanks for the flies you recommended to my buddy and I for Crane Prairie. 

We absolutely dialed in the “cranebows” and, while we lost 3, we landed a healthy 25ish incher. Also had great callibaetis hatches in the evening in the Deschutes channel, while that mostly produced brook trout we got some bows to play along on the surface. 

Thanks again! 
Max— 

I want to go in the evening and catch Brookies on dries! WOW that would be fun there. 
Also, Crane Prairie is one of the lakes in our region to get a small mayfly called a Caenis. They are closely related to a Mayfly you might have fished in river called a Trico. We have some good little Trico/Caenis Complaraduns and Spinners here if you need them. Usually this is an evening occurrence, but mornings are possible too. https://www.troutnut.com/hatch/392/Mayfly-Caenis-Anglers-Curses