If you are over-seeding pastures or hayfields, there is no better no-till drill than Aitchison. Most other drills are designed to sow soybeans approximately 1.5" deep in high-residue corn stalks. The ideal soil coverage for most seeds being sown in pastures is 1/4" to 3/8" deep. When over-seeding pastures or hayfields, there is usually 0.5" to 1" or more of variance in the levelness of the field in a 3' to 5' run. It is impossible for the drills that have their depth/press wheels set 1.5' behind the seed delivery to maintain a consistent depth. Possibly over 50% of the small seeds will be too deep or on top of the ground. The Deere 750 Series has more positive depth control, but many owners report that, in many situations, the seed is still buried too deep because the drill is so heavy. Most seeding failures are due to seeds covered with too much soil or left on top of the ground.