A couple of years back, while I was involved in a group that eventually created the ScALeD principles, we were of course discussing the benefits of the different scaling approaches out there. One of the participants – I think it was Andreas Schliep – mentioned to me that the release train concept in the scaling approach that Mike Beedle always referred to as S_Fe was pretty clever. Since I spent some amount of time on trains in the past twelve years, I tend to disagree. Let’s see how I perceive the release train metaphor based on my experiences in the German train infrastructure.