The vast majority of your dry fly presentations ought to be made upstream, with you standing slightly to one side of the fish. This optimizes your cast, your mending, and your hook set.

But what if you can't do that? What if there is a fish that is downstream, under cover, and slurping bugs off the surface with wanton slovenliness? What then? Do you miss out and chalk it up to the "rules" of dry fly fishing? Do you go home, bested by the trout to which you did not cast?

There is good news. You can cast downstream to rising fish using a dry fly. And although it isn't optimal, you should know how to do it. And today I'm talking about it.

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