Board Thread:General Discussion/@comment-86.182.151.242-20131113212444/@comment-15636815-20131113225719

hehehe ... I'm something of a purist and a perfectionist, and I agree that it would be cool to have complete sets all the time that included every type of wagon available in those sets. At the same time, I'm practical. If one wagon in a set clearly does better than the others, I'll load up on that one and forget the others.

As the guys above stated, all that is required for a set bonus is that all the wagons behind the loco are from the same set as the loco.