So many things affect soy. Temps pouring, speed of pouring, room temp, speed of cooling, etc. Can you tell us a little more, when you added FO, how much FO, and pouring temp? By a rough top, is it flat but looks like little air holes all over, or is it a larger roughness like cauliflower? I've never heard of a C-4, though. Is Cargill making a new wax, or was that a typ-o?