This pattern reminds me of a pattern I used to tie, but didn’t have much luck with when I first started fly fishing. My attempts at the fly were done on a straight shank hook, (first mistake) and used a bulky 3mm foam. I also tied it for stillwaters, but I have never tried it on a stream. I like the wingcase here as well as it could serve somewhat as an indicator if you use some brighter colors on it. I know a few spots this would work well on my home streams and will tie a few for the emerger box.