A system conveying material-other-than-grain (MOG) from a harvesting machine to a packaging machine towed by the harvesting machine. The system includes an joint pivotably joining a harvesting machine hitch to a packaging machine hitch. An accelerator is mounted to the packaging machine hitch. The accelerator has a housing with a top-side inlet and a side outlet. A MOG-propelling disk is disposed in the housing and is rotatable about an axis. A conduit is disposed above the packaging machine hitch and has an inlet end and an outlet end, the inlet end coupled to the side outlet. The conduit has first and second opposing side portions and a top side portion without an opposing bottom portion, with at least part of the top side portion is parallel with the plane of the disk. The accelerator, conduit, and packaging machine are collectively in pivotal arrangement relative to the harvesting machine.