Congestion on Mullan Pass

This is a long video: 21 minutes. I had looked at cutting it, but it shows the whole event and there really wasn't anywhere to chop too much.
First: A helper set from a previous westbound train is sitting at the east end of the siding at Austin. While a loaded westbound grainer is approaching from Helena, an eastbound empty coal is coming down the hill. The eastbound must tuck into the siding behind the helper set and allow the westbound to pass. Once the tail of the westbound passes the switch, the helper set gets clearance. As soon as he is on his way, the eastbound empty coal gets going with a jerk. All of my videos are available under a creative commons license. Use as you wish