I know the disks will cost some money, but I have to have them. The old ones are worn down and some of the bearings locked up. The soil is big time sandy, so I don't have a problem with penetration.I could be planting in a driving rain, and the soil would not stick to anything.The old drill originally had press wheels and I agree, my drill that plant my crops with has them, but drag chains will work fine for what I'm doing on the deer farm. I usually plant double or more seed rate to try to get ahead of the grasshoppers and those pesky deer. Getting rainfall at the right time is the big issue for me because the soil is so sandy, the water just goes straight down and dries up pretty fast.