Do take photos. That harina preparada mix is interesting here are the ingredients:
ENRICHED BLEACHED FLOUR (BLEACHED WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID), PALM OIL, SALT, LEAVENING (SODIUM ALUMINUM PHOSPHATE, SODIUM BICARBONATE, MONOCALCIUM PHOSPHATE), CORN SYRUP SOLIDS, DOUGH CONDITIONER PRODUCT (WHEY, L-CYSTEINE MONOHYDROCHLORIDE), DEXTROSE, CALCIUM CARBONATE.
CONTAINS WHEAT AND MILK INGREDIENTS.
Right off I see there is Palm oil, Sodium Bicarbonate (Aka Baking soda), Corn Syrup solids? and a dough conditioner. These are all different from the RT and Shakey's bags. I'll have to revisit that recipe and see how much of this is cut into the flour. I have some PZ44, but I don't think that's quite the same. The milk is said to be in there, but I don't see it listed anywhere. Perhaps it's <2% or something? I wonder if it's just NFDM? There's a lot going on in this mix.