Board Thread:Speculation House/@comment-27404492-20170708180328/@comment-28522425-20170805175300

Didn't they say that the first short was made different from the rest of the Volume. That it was sort of an experiment, but it took a lot of work, so they decided to simplify the process for the rest of the volume.

I don't remember the details, but I remember having read something along those lines when reading about the Directors commentary of Volume 4.