the headsight will act just like your 1020 flex head "will follow the ground smoothly". the cih system the outside rows fieldtrak ONlY and the center sensor will ONlY raise and lower the feeder. the headsight will follow rolling ground lots better
don't know why not. have a friend that has a 1010 and he has the kit off the 1000 series corn head on it and it works great. the headsight system would even work better.