I bought a 4x4 drag harrow to rough up some bare dirt, cut some surface up for seed, flip the harrow over after broadcast seeding some winter grass. I've checked the soil and will fertilize gently before using the harrow. Harrow tricks/advice? Slow, fast, medium speed? Go north/south, then east/west or just in one direction at first? I got the 4 footer because I need to handle it alone and it was in stock at TSC. I have about 2 acres to cover, so a bigger one would have been better and faster, but I have more time than money. I'm figuring on watching it work and adjusting speed as required. If anyone has tips on using this tool, I'm listening. Thanks!