I for the longest time thought the best tool for plots was a disc. I’ve used a tiller for over six years now and won’t go back to a disc. Someone was asking on here about covering up seed with a tiller. Well, I did half my plots that way this year and so far so good. Don’t sink the tiller and just lightly till the ground. I’m sitting on a field that was drug last Tuesday. The turkeys are enjoying them selves. My tilled over plots are a day older than this one and are looking really good. So, yes you can use a tiller to cover seed.