This is Mr. Jin doing his thing. He is a master of the coil and paddle technique. He has been making large scale pots most of his life. He learned his trade from his father in the family business.
Paddling the base after it has set up a bit. The rest of the pot will eventually be paddled into a beautiful bulbous form. This was part of a three day workshop that he taught. I have been trying to learn this technique but I seem to be hopeless for the near future.