You know me too well, Hook. I do things just for the fun of it.
I've fished for steelhead in so many places only my fishing journal can recall them all. After a few thousand steelhead you start to see patterns forming... and I don't mean fly patterns. I can only count on two hands when steelhead were actually selective, and almost all of those were summer steelhead. I do know that steelhead have colour and size preferences, though. That is when I experiment. And, because most of us like things that are pretty, were create all these lovely patterns. It's pretty hard to beat something that is colourful and swims through the water like something alive. And, because fish don't have hands they will pick up things with their mouth.
I was sitting above a canyon pool full of spring steelhead with a friend from the Kootenays. Simon wanted to catch a steelhead on a fly and asked what pattern to use, and I said watch.
I took a candy mint from my pocket and bit it in two pieces. Then, I tossed each piece into the pool where about 50 steelhead were holding. The first piece went fluttering down in the current and when it reached the fish the first big steelhead grabbed it and held it for about 3 seconds before spitting it out. It didn't float more than 10 feet and another steelhead grabbed it. That happened a third time before the candy mint drifted out of the pool. The same identical thing happened to the second mint.
Then, I took the candy wrapper and put a tiny pebble in it, and tossed it into the pool. Three steelhead sampled it as well. Then I asked Simon what fly he thought he should use. Simon could only laugh.