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The Theory The theory of casting a fly is simple. One has a long, more or less pliant rod to act as an instrument of propulsion to throw out a line, leader, and fly or cast of flies. The motive power is furnished by the caster's forearm and wrist, aided by the spring of the rod and supplemented by the weight of the line pass- ing backward and forward through the air. Reduced to mechanical terms the rod is the lever, the fulcrum being the hand and the counterweight the reel and reel seat. Grasping the Rod The way one grasps his rod has more to do with good casting than the beginner would believe. The natural way would be to wrap the fingers around the handle with the thumb over the fingers; the correct way is to have the thumb pointing along the rod. This is more important than it seems because it gives the muscles of the wrist free play and the thumb serves to give both force and direction to the cast. The first or index finger is sometimes used the same way to give the thumb relief after much casting. |
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