Cutter has received the disc on the trap sideline, has no downfield option and turns square to the handlers on stall five
The handlers are looking at the thrower. When the thrower turns to them, the middle handler chooses upline or dump cut and the offside handler does the other cut- in this case the middle handler cuts dump
When the offside handler sees that the dump throw is going, they turn over their backfield shoulder to cut back for a swing throw
As the middle handler receives the dump throw they turn over their backfield shoulder to throw the swing if its there
As soon as the cutter throws the dump in this scenario they know the handlers are going to work toward the breakside. The cutter can clear out hard along the trap sideline, looking to cut deep for a long huck from the swing