The problem with B is that spotting cars at the cement plant still blocks cars going to the mine because it creates a short switchback tail.
That's why I suggested reversing the crossover, that totally eliminates any conflict between the cement plant (or ink factory for that matter) and makes switching much easier.
That's why I suggested reversing the crossover, that totally eliminates any conflict between the cement plant (or ink factory for that matter) and makes switching much easier.