would I be wasting my time buying a 6' disc implement for a JD 4020. Wheel base is 8'... I would be using disc for foodplots and garden. I also have a JD 655 compact tractor. Any ideas what kind of disc the 655 can handle? I don't want to go bigger than 6' really because it would be overkill for garden and food plots. Looking to till up 1-2acres total for food plots.