I mean, you dont need to rely on it for warning criteria there imho. I think you’re already in the 6-8” range from the initial thump….the Kraft finish is what will decide whether you get 8-10 or 12-16. If it’s kind of disorganized and too late, you prob only add a couple inches of powder. But if it cranks for 4-6 hours then you’re adding another 6”