Spacing ?  How is the seed depth ?  How does the row look when the corn first emerges ?  Looking at seedlings 1" - 1.5" tall, just barely out of the ground.  Are all the seedlings lined up ?  We see the same thing with earlier CIH planters.  SEED BOUNCE ! !  I don't mind the seed bouncing side to side, but when it bounces in the furrow, giving uneven seed depth, that is a concern to me.  I have talked many times to CIH people at equip shows, but they will not admit the seed is bouncing in the furrow.  We have heard all the reasons they can think of, but cannot make the planter stop it.  One idea was that the long delivery pipe must be smooth.  Then they CIH made a delivery tube that was orange-peeled/dimpled inside.  HHhhmmm       Wonder about that