Hello, I am looking for some guidance to see if im goin in the right direction here. A customer has some low spots in her yard and would like them brought up with the rest of it. She also wants it rolled and aerated because its a bit rough. My thoughts were to either roll it with a 1.5 ton roller or a smaller tow behind roller not sure on the weight maybe 400lbs and than aerate the hell out of it all. After that I would put down top soil, roll, put down more top soil, roll again and rake to break the top up for seed. I would than over seed the whole yard with a broadcast spreader and than add starter fertilizer a week later and possibly some compost down the road. Am I on the right track? How much higher would I have to go with the top soil than the existing lawn do I have to go to figure in settling?