I have a customer in central GA planting corn no-till with JD1700 maxemerge planter. Planting into 5 ft tall headed out rye that has been rolled and sprayed with gramoxone last week. Has double-disk seed furrow openers w/ single coulter 20 inches ahead of furrow openers. Has disk opener in front and 2 inches to the side for side band liquid. His seed depth is inconsistent from 0 - 1.5 inches and would like to be at a consistent 2 inch depth. His fields are flat to rolling sandy loam to loam. Does anyone with experience have suggestions?