A pelorus does not take the painter's pip as north. The spine does.

We sight the spine against a lubber line scribed on the vise, then we check it again after six balls into a fan that mimics Ship Island afternoons. If the heading only walks in the fan, the problem is posture in the wind, not the hosel. If it sits open in still air too, Elodie marks a clock.

When the long irons sit at two o'clock and the pitching face is still on twelve, we refuse a single heading. That bag is two cards on one watch. The four gets an hour; the wedge stays until a later bearing.

People who want one number for every hosel are asking the pilot to average a coal barge with a skiff. The pelorus keeps separate cards.