I couldn't agree more.....the sparkle dun is an awesome pattern style....deer hair, snowshore hair, CDC, Polypro, even wound hackle trimmed flush can all be used for the wing - and the curved hook/emerger style pattern seems to be the most productive. I am partial to the TMC 2488. Heck...you don't even have to necessarily add a "shuck" on every time (of course then it becomes more like a klinkhammer variation). I also think color variation can be simplified. Barring a highly selective situation....using standard light cahill thread/dubbing if presented properly covers most of the light colored mayflies/sulphers if the size is close to the naturals.