Dennis - For what it is worth, I harvested more down corn this fall than any other.  When faced with the worst case scenario, I take off all of the ear savers and entirely coat the snoots with liquid graphite (slip-plate).  This helps a bunch to get the stalks to flow in, especially as I position the tips of the snoots to be just skimming the ground.  Your speed will be slower than normal, but that's the best info I can offer.  Wish you well Sir!