 The heights of the tracks meant that six slate wagons could be manhandled 'pick-a-back' onto each transporter wagon in pairs, side by side.They were made up to trains then hauled to Blaenau Ffestiniog where either the above process was reversed with the narrow gauge wagons being manually propelled onto the narrow gauge Ffestiniog Railway or they were unloaded, sorted and transshipped into GWR standard gauge wagons.When the latter happened they ended up travelling southwards past Tan-y-Manod on the way to their final destination.