A stripper plate system includes a first stripper plate movably mounted to a frame, a second stripper plate movably mounted to the frame in an opposing orientation to the first stripper plate, and an elongated gap in-between the first and second stripper plates. A first tensioning mechanism biases a proximal end of the first stripper plate toward a center of the elongated gap, a second tensioning mechanism biases a distal end of the first stripper plate toward the center of the elongated gap, a third tensioning mechanism biases a proximal end of the second stripper plate toward the center of the elongated gap, and a fourth tensioning mechanism biases a distal end of the second stripper plate toward the center of the elongated gap. A biasing force of the first and third tensioning mechanisms is lower than a biasing force of the second and fourth tensioning mechanisms.