A drive shuttle is provided that includes a leader ramp mount that includes a longitudinal first axis; a first leader ramp that depends from (i.e. that physically couples to) a first side of the leader ramp mount; a pusher protrusion that depends from a second side of the leader ramp mount; a follower ramp mount; a follower protrusion that depends from the follower ramp mount; a first follower ramp that depends from the follower protrusion; wherein the first leader ramp, the pusher protrusion, the first follower ramp and the follower protrusion are disposed in relation to each another such that, in the first configuration, the pusher protrusion is spaced apart longitudinally from the follower protrusion by an offset amount and the first leader ramp is aligned longitudinally with the first follower ramp; and in the second configuration, the pusher protrusion contacts the follower protrusion and the first leader ramp is spaced apart longitudinally from the first follower ramp by the offset amount.