Stimulators. For hoppers and the like, I use the 2XL curve shank TMC2312 or TMC2302, mainly because I do not like 3XL hooks or longer in general.

One often hears about the hooking problems with the TMC200R, and yet it is a very popular hook in the SW for midge patterns (refer Takahashi and Hubka, Modern Midges). I rarely use them for anything but dries, so cannot comment personally, but it is a much maligned hook.