I HAD THE EXACT SAME PROBLEM, IT TOOK ME A WHILE TO FIGURE IT OUT BUT I NOTICED THAT WE HAD A VERY OPTIMAL YEAR FOR ACORNS AS APOSED TO THE YEAR BEFORE. MY WOODS ARE MOSTLY OAK TREES, NOW IN YOUR AREA I DON'T KNOW IF THERE ARE A LOT OF OAK TREES WITHIN A MILE AND A HALF, YOUR CORN MAY BE COMPETEING WITH SOME OTHER FOOD THAT DEER JUST LIKE MORE. ALSO CONSIDER THAT CORN HAS ABOUT THE LOWEST PROTEIN CONTENT OF ANY OF THE FOODS THAT THEY EAT, SO IF YOU MIX A 2-1 MIXTURE OF CORN TO SOYBEANS THEY WILL ALMOST BE DEPENDENT ON THE FEEDER, THE PROBLEM IS IF YOU STOP ALL THE SUDDEN YOU CAN SEVERLY STRESS OUT THE DEER IF NOT KILL THEM. NORMALY THEY DON'T LIKE EATING SOYBEANS THAT MUCH, IT IS THE SAME AS PARRENTS MAKING KID EAT BROCCOLI, THIS IS WHY YOU HAVE TO GET THEM USED TO THE TASTE BY MIXING IT WITH THE CORN.