Having got this far with your interest in Circle hooks, let's make sure that the hooks that you are interested in using are in fact true Circle Hooks. The obvious differences are that the circle hook has a point that is aiming directly at the shank of the hook. While the Kahle hooks point aims slightly upwards, and is kirbed. Kahle hooks are NO substitute for a circle hook, regardless of how cheap they are compared to a circle pattern. J' hooks are by far the most popular pattern, and not surrounded by all the 'mystic' and 'fear' of circle hooks.
Circle hooks are very size orientated.
In that a small hook will probably not hook a large fish, due to the mechanics of the hooking mechanism, that nearly guarantees a scissors hooked fish. Rigging baits on circle hooks, within the context of shark fishing is divided into two areas, dead or live baits. Firstly mount a doubled length of dental floss on the curve of the hook, with a clove-hitch. Then mount the dental floss on a large sewing needle. Next get your lively live bait, gently in you left hand.