If you’re asked to move models to show the positions of boats before and during the incident, work methodically through the incident, making sure that all members of the committee and your opponent can see each time you position the models. Start with the positions of the boats a few lengths before the incident. Paint a picture by describing the wind, the seas, the current, your approximate speeds, and any special conditions caused by changing sails, gusts, hails, or sources of noise or distraction. As you move the models, make the motion consistent with the wind direction and the current, and move them in a way that is consistent with their scale. Often the spacing between boats is crucial. If you think there was 5 feet between you and your opponent at a particular moment, and if you were sailing 15-foot dinghies, then position the models so the space between the two boats is about one-third of their length.