Most so called pros only know application. They all love heavy talc and clay based paints thats why they don't use the more expesive heavily concentrated titanium dioxide paints like Behr. The customer is the person left with the paint on the wall to clean. What happens to dried clay when it becomes wet again? It turns up on your sponge along with the pigment.Behr paint was rated number one by consumer reports across the board, not for pro painters but for the end user.