The "Pinkies" are a fantastic hatch that happens on the Lower Yuba River in May - Sept. These patterns are my go to patterns. Fish this fly on a long 15 foot to 5x leader. Add floatant to the CDC Post. I like fishing this pattern in late evenings. I treat this fly with Loon's Top Ride and then treat it during I fish it with Loon's Lochsa.