As grain and soy futures markets tiptoe into November, the bag of potential price moving factors they face seems unusually full. There are the common (for this time of the year) questions about average yields and production volumes for U.S. corn and soybeans. Actually, there are perhaps more than the usual number of questions about production for early November due to the late harvest and the fickle growing season weather that has produced widely variable yields where harvesting has occurred. Then there are the recurring questions about U.S. and South American weather. There is also the status of trade negotiations between U.S. and Chinese trade officials trying to hammer out details of the now famous Phase One of an overall settlement of...