But truth is, the fish that by far flips my switch most at this point in my angling life is the "fish of one cast." A wily, old, wild brown trout, tucked subtly in a river seam, in a spot that few would be able to find, and fewer still are able to drop a fly. To be perfectly clear, "the fish of one cast" isn't the trout that eagerly grabs the first bug that floats its way, rather, it's the fish that demands your best shot on the first cast. You try to put everything in the fly-fishing game together at one time: spot the fish, read the water, choose the exact fly, have the right rod, make the perfect cast, float that fly with a perfect presentation… Then, only then, if you do everything exactly right, you have a good chance. Make any big mistakes, and it's usually game over.