I observed the outbound power change at South Amboy in 1982 and engine crews changed with the power. An engine crew would bring down a pair of E8A's and they would be held in a pocket track to wait for the outbound train. Two carmen were stationed at the station platform to uncouple the GG1, which would then pull forward to clear a manual crossover. The switches would be thrown by the crossing watchman and the GG1 and its crew would back to the engine house. The crossover switches would be re-aligned and the E's would back out of the pocket track onto the train, where the carmen would make the connections. The conductor would signal for a brake test and the train would be ready to continue. All of this occurred in about five minutes.