On the F06-1 Manifest Switching - Cutting cars Service, I build a buffer of 2 or 3 cars and tie the handbrakes on those. Then I grab the first x2 set of tankers you come to, after building a buffer. I pull them out and kick them on top of the other tankers in that track. (BTW: Game seems to have restriction to where you must have at least 2 cars together to kick. No Single Car Kicking, apparently.) Once the cut of tankers couples to the track it accepts the couple but then just says wait and doesn't change and won't update progress. ( I've let it sit for an hour and no change.) Also the Graphics on the CSX engines can be a lot better. Looks like minimum effort it the graphics design sector.