Bruce,
I did well with olive when I first started fishing the hatch; the patterns I saw were olive and, not knowing any better, that’s what i tied. When I started seeing the bugs close up, I realized that the colors I was using were way off
Didn’t seem to make much difference to the trout, though. I don’t fish water that gets a lot of pressure, like the Bitterroot (it gets a great hatch; everyone should go there, please!); on the rivers I do, the fish aren’t real picky. I’ll continue to use the olive flies I have because they work, but more and more, I’ll switch to the brownish ones.
Regards,
Scott