If you use a corrector box, you should adjust it first to the compass, before swinging the compass: Point boat to MN, your helper with another compass in hand standing well away in front, aims the boat.
Ukuba usebenzise ibhokisi yezilungiso kufuneka uyilungiselele kwikhampasi kuqala phambi kokujinga-jinga kwekhampasi ukhombo kwesikhephe kwi MN, uncedo lwakho ngenye ikhampasi kwisandla esime kakuhle kude ngaphambili, ikhombe isikhephe.