 The locomotives were now regularly working up to Tingtang (west of the Consols); traffic was increasing markedly on the Wheal Buller branch (and declining on the Redruth main line) and the decision was taken to operate the locomotives to Wheal Buller, involving relaying the track, as soon as the traffic justified it.In fact this was done by 1857, and they took over operation of the whole line.The locomotives were worked very hard and continuously, and in 1858 a decision was taken to acquire a third