Jim,
Thats some good info,
As for the loco placement on Eastbounds, (for non Cumbres turns Tripple headers) leaving
Chama most of the time the road engine was on the point, with a helper cut in about 12 cars back and
the rear helper shoving on the end, after arriving at Cumbres the helpers were cut off and ran light back to Chama or ran ahead of the train to Alamosa.