The Harley Rake does one heck of a job leveling and preparing a seedbed. I have a 6ft one behind a JD4310. They are expensive, but there is nothing like a Harley. I sold about 3 other attachments I had once I got the power rake. It will not dig as deep as a tiller, so I use a rollover box blade to rip the ground first followed by the power rake. I use mine just about every other day. It can strip existing turf, dethatch, and level.