What does it mean...off-side casting?
Casting with the line on your off-side (for example, the left side for a right-handed caster) is a safe way to cast with wind blowing toward your casting arm. It is also used to avoid obstacles that can limit your ability to cast on your normal side. An Off-Side cast can be made by simply adjusting the rod angle so that the tip of the rod travels on your off-side during the casting stroke. Because the fly line follows the rod tip, the fly line will also be on your off-side.