A far more substantial change is observed when there are four compensating capsules on each side of the central one, Figure , case "4", that is, when the total length of the train of capsules (about 10 cm) guarantees that neither end of the train gets very close to the pick-up coils during scanning. This makes our assembly semi-infinitely long, fulfilling the first prerequisite condition of the efficient in situ compensation. Indeed, the voltage registered during scanning is strongly reduced (orange symbols in Figure ), particularly in comparison to the initial case of the single capsule. The corresponding magnetic moments are marked as orange filled circles in Figure . They are now very close to zero, but not strictly there. First, the train is not really very long (yet); second, it is not uniform due to its "granular" form. The capsules are not uniform themselves, they are thicker at the cap-containing half and are rounded at both ends. The resulting nonuniform mass distribution along the length of the train of capsules will always have its mark on the final form of the scan. It will be shown to be appreciably small.