Grains end mixed with wheat seeing technical selling pressure after hitting chart resistance.  Soybeans and products saw corrective buying.  Corn was slightly lower caught between higher beans and lower wheat.  However, corn is still in a narrow sideways trading range.  Grains generally lack buying interest by the funds but do they become an inflationary and geopolitical buy at some point?  Kevin Duling, KD Investors, shares his insight.