I am seeding 7500 sq feet of a lawn with centipede in a few weeks. I have lived at the residence for 5 months and when I moved in it didn't have grass. I put some rye down for the winter and it came up fine. Now I have some pretty thick weeds that have grown and I'm trying to decide what my best course of action will be to grow my centipede this spring. Should I till? Should I use round up to kill everything before I till? What about a grass like bermuda to seed with the centipede to get things moving? My plan was to put a weed killer on the lawn (which I did a week ago), till the whole thing, rake in centipede with possibly bermuda and compact the soil with a roller. Some guidance would be awesome.