The locomotive is puling a consist of loaded log cars. It pulls onto a siding , decouples, and proceeds with no consist. Later the engine returns approaches the consist until about 50ft away. Then it slows and couples. There is no routine we now see with the approaching locomotive slowing down, proceeding toward the consist slowing down to 2mph for some distance and then increasing to 5 mph for coupling. Is the coupling process on the Philskene route only applicable to narrow gauge assets? 