Board Thread:Questions and Answers/@comment-26518423-20150927025738

Dark Lager III requires the dispatch of 100 sets. One method is to empty 3 slots and spend 12 hours sending sets. But, it's asking for the set to be dispatched, not complete the run. If you cancel the train after dispatching, the time is reduced to to 7 minues... or approx 4 hours. There is a catch.

Here's a chance to bring Mr General and Puffer Billy out of mothballs. The drawback to this method is that you'll toss away the cargo. If you carry freight, you'll only toss away the tax, but with passenger/mail trains, you also lose the passengers/mail. If you don't have a freight set, the use of the smallest capacity is best. 