I have yet to catch a steelhead, so I probably don't know what I'm talking about, but everything I read tends to lend itself to changing up the size and the color depending on water conditions - depth, clarity, temperature, etc. So I've been using darker (blue, purple, black) #2s and #3s lately since the water is clear and warming up into the low-to-mid 50's. In the winter when the water is a little cloudier and much colder in the low 40's, I go with brighter (pink, red, orange, etc) #3s, #4s and sometimes #5s. Again, yet to catch a steelhead, so take that for what it's worth!!