 Indeed, the pronounced waddling of this very train was noted by the signalman at Pilmoor in his log as he recorded its passing about 6 minutes before the derailment.Also at Pilmoor, two men were watching the trains pass.One of them had noted that the leading wheel-set of a wagon "somewhere just forward of the halfway point" had dropped heavily into the gap on a cross-over then rebounded higher than the rest.