I always remembered the first month of Season 30 sort of alternating between "Shoes" and "Hats" on a weekly basis, before adding "Dancing" and "Jackets" to the roster, then later the others ("Food," "Books," "Music," "Water," "Transportation," and yes, "Balls") about halfway through the season, then "updating" the episodes during summer repeats.
I guess I'm wrong, but that's clearly how I remembered it, because, surprisingly, EW is one of the main things that really brought me back into SST after the whole ATC era sort of disenchanted me.