It is said that grain traders seek certainty, but grain markets thrive on uncertainty. The days since USDA released its WASDE on 12 August have offered the latest example of this dichotomy. Of course when it comes to grain markets, seldom are potential market-moving factors ever certain. However, widely-held collective opinions can sometimes assume the mantle of certainty, no matter how undeserved. That seems to have been the case leading up to last Friday’s WASDE. With the help of numerous crop scouts crisscrossing the Corn Belt, traders had largely convinced themselves that the bizarre wet weather conditions last spring resulted in lost corn acres and more soybean acres but sharply lower yield and production prospects for both. Fol...