I do no generally pour twice in a day. I find my molds keep their detail (and produce “crisp” castings) longer if I alternate days of casting. Basically, I want the mold to dry in-between castings. I know that at Pour Horse, they used to cast twice a day, but that was in Carlsbad, which has a more arid climate.

One way to tell that you are pouring when the mold is too wet is if the clay leaves a significant stain inside the design of the mold. Your clay should darken the mold ever so slightly (because it is wet) after you remove the casting, but it shouldn’t leave actual clay residue behind. Usually, if the is happening, the mold is too wet - or the casting is being removed too soon.