My own education happened naturally. Over a period of years, fishing day in and day out, I developed a casting technique and style that works for me. But it took time, and not everyone has that luxury. Inevitably, the anglers I meet who struggle to cast a fly, whether working with a dry line, tight line nymphing, whether casting wets or streamers, it comes down to one thing. They aren’t aggressive enough.
The fly rod needs an angler who will take control and be bossy. Good casting requires acceleration between 10:00 and 2:00, with hard, deliberate stops at those points. That’s what I mean by aggressive. The cast should be crisp. It must stop between two positions, and it must stop with purpose. The casting stroke should never be lazy, and it should not be cautious. Otherwise, fly placement and accuracy falls apart.