I'm looking for an implement to do very final light soil grading AND after seed run over it to lightly cover the seed for a smooth finish. The Harrow Rake seems to get rave reviews, but will it be too aggressive for that final finishing after seed? Otherwise, seems like a chain fence style drag could work. I'm looking for best implement for the job. It's worth noting I'll either pull this behind my 18 HP Lawn Tractor or my ATV. I'm note planning on using my 48 HP compact tractor for this finishing work, too big and heavy. thank you