Just curious, in the story "Bowled Out", a Duck and Stepney have to take over the express from the failed diesel. The story notes the load is 15 coaches (assuming MK1s or something similar) and they went over Gordon's Hill unassisted (Gordon's Hill is modeled after the Lickey Incline). Would the Pannier and Terrier have been able to pull that load, including over the hill and be early?