For that approach, it's only with diacetyl-producing strains, or with protectorants, not the main acidifier, which should be lactococcus for tommes, perhaps with some Strep. The main acidifying culture, you add closer to proper temp range, and either wait for DVI and tolerate the slower speed, or use mothers. Reason is because for acid producing culture, you need higher temp... there's no real advantage to adding them in when you're going to refrigerate them. If you want a faster drop, switch to a new strain of lactococcus/adjust pitch quantity