To long-ferment this recipe, withhold the leavening agents in the beginning. Let the dough rise overnight, and add the baking soda and powder the following day, kneading well before forming the rolls.
For best results, aim for consistency when cutting the rolls. Smaller rolls will bake more quickly than larger ones, leaving some rolls overbaked and others potentially underbaked.
When rolling up the dough, a bench scraper can be helpful to help ease the dough away from the work surface if it sticks.
The thinner you roll out your dough, the more layers of cinnamon filling you'll end up with.
Rolls placed more closely together will yield a softer exterior, while rolls placed farther apart will have a firmer crust. Rolls placed apart will also keep their round shape better, whereas they are often square when placed close together or touching.
While you could use active starter rather than discard, discard will have a deeper flavor because it is long-fermented.