Not being a butt. Fly-fishing isn't new to me, but I didn't live where trout live until the past few years, and that makes fishing for trout new for me. For the past few years, I've been living by the quote attributed to Allison Moir: "'Ninety percent of what a trout eats is brown and fuzzy and about five-eighths of an inch long." It's worked to a point, but the rainbows I catch are never very large, and I've had to look closely at more than a few to be certain they were, in fact, fish and not tadpoles... There are good-sized rainbows in my local rivers, and I've landed several on spinners using conventional gear, but not yet with my fly gear. So I'm curious about how important it is to match the hatch and can it lead to catching larger fish?