Yea, I do remember watching him back about a year or more ago now. And he is what convinced me to use mix and pour. But I didn't have the problems he seemed to have had. I did a calculation of the areas I needed to pour and did a close match. And being how I had two sides that were mirror copies of each other, when I poured one side, I adjust the amount for the other side and that made it a lot easier to work the cavities.
