I'm looking at SCUT tractors with 7.5 inch ground Clearance at the front axel. I want to use as much mechanical advantage in planting and weeding/cultivation. I also think I need to mound my rows and the mounds will raise the small plants into the front axel after 7 inches and the weeds would start to take over. Maybe I have this all wrong and I plant "flat" and have a full 7 inches? Do you mound for your vegetable crops or only for things like potatoes?