A sorting conveyor system in which a main conveyor is intersected by one or more cross conveyors forming sorting stations at one or more gaps along a main conveying path. The display device includes pixels, a data driver, a signal controller, a data processor. A shuttle conveyor has a retractable and extendable conveying surface, the conveying surface arranged above the fill station and having an end region extendable to a position arranged to deposit food product drafts into the containers of the first row by circulation of the conveying surface. The tube end portion acts as a stop to limit the distance the needle tip can be inserted into a subject, such as an egg, through a membrane of the subject.