I could see several rise in the early evening. I tied midge dry first without hesitating, because I saw many midges there.
I tried bunch of midge patterns, yet there was no take.
I checked drifters again with care, then I found the moving baetis nymph close to surface.
So I change my strategy from midge to baetis.
After several trial and error, it took about two hours, I eventually found the pattern.
After I figured it out, I got three luck on the trot.
I took pains to find it, yet I could enjoy whole process. Everything there trained me up every time.