Size 18 in Olive produced the best for me. I used the split thread technique of dubbing rather than a loop on my patterns, as size 16 was as big as I tied.

I stumbled upon this pattern when I was doing a YouTube search for baetis nymph patterns. I watched Kelly Galloups video of the baetis nymph, and the video of the GRHE started playing unexpectedly afterwards. I watched it and decided to try it out. Glad I did. The GRHE was hands down more productive than the baetis nymph.

Size 18-16 was all I used, in Natural, Olive, Black, and Chocolate. Over all Olive and natural were the best producers in the past 6 months. Black had it's moments.