Mike - the prototype doesn't make more moves than it has to, complicated trackwork and maintainance of turnouts, means they keep it as simple as possible - crew time costs money - that doesn't mean it may not be either fun, or challenging! On Ness Street above - put four cars on spots, and loco+three on the interchange track. deliver the cars to the industries, pick up 3 of the cars(your choice) from spots and put them on the interchange, and if you have to move the fourth car, put it back - remembering that the owner of the business isn't going to be happy having his workers standing around on his dime! Want to make it more difficult? Run a road across the tracks, and a town ordnance says the RR crossing must NOT be blocked for more than 3 minutes - you need to keep the Sheriff and the Mayor happy