C should turn to come under when they see B turn; typically, this happens when B gets too close to the disc
One half of the Peppermill options
A handler, A, starts near the middle of the field marked by D1. Two cutters, B and C, stand as though in a horizontal stack, approximately 10m downfield from A and around 8m apart. They are guarded by D2 and D3 respectively.
D1 > A > D2 > B > D3 > C