Hi, y'all! I tried searching for this in the search function but could find no answer. Does anyone know why so many of the stack trains (container trains w/ well cars) on Sand Patch are only single stacked? I don't think that it is a clearance issue because I do occasionally see a stack train car with two 20' containers in the bottom of the well with a 40' over both of them. Could it be because most of the containers are so heavy that they top-out the weight of the cars??? I don't know. Maybe some of you have some insights on this!