Well the 720 breakout pt support "TEST" area has failed like the last one did. You may be correct and see price fall to 684 which is the next support but it does appear the 720 support has failed. September is the most bearish month of the year for Corn seasonally. And the seasonals do seem to be kicking in here. The historical low in Corn is the end of Sept/early Oct. I wouldn't chase it at any price now.