In amongst the more familiar patterns I've been tying, I posted a few non-standard flats flies online this week. Much as I expected, the reactions were mixed. It's amazing to me how many people obsess over insect imitations, but don't seem to consider the range of prey species available when it comes to flats species. Perhaps it's because a shrimp, crab or baitfish will generally cover most bases. But anyone who's ever fished the flats has experienced inexplicable refusals on seemingly perfect presentations. And I'm not just talking about permit and bastards, it happens even with the "easy" species. I'm sure there's an element of conditioning that happens with this. For example, if the bonefish flies you see all follow the Charlie/Gotcha profile that become imprinted as the format for a bonefish fly. Those patterns then get used more often and not necessarily because they are more effective flies in a given situation, but through confidence a...