I was on the Willow during the third week of May last year. The water temp was 73 deg and flows were low. When i arrived i though I would be wasting my time. Boy was i wrong! Caught six between 10-14" long on a single size 12 GRHE in 2 hours. That was a very good day. Lesson learned: don't pass up any opportunities to drop a line into the water. Best of luck on your trip