I would really not be comfortable about shorting Corn just yet. My charts look too much like a correction is imminent.
The formation on my daily charts looks too much like a Cross over is about to occur. If this happens, it's a buy signal.
In order for me to short the market, I need to see a bounce off of the 18 day moving average, and the bollinger bands to start opening up. My intra day charts will tell me if that is happening on that day, or not.