I've seen some of the lawn that has perfectly leveled and grass is always green and also no taller than 1/2". I assume that is some kind of sport turf or burmuda grass. So my questions are: 1. how do u level that un even yard in to perfect flat? 2. are those special grass? 3. what machine do they use? If you have one of those yard (near perfect look) I want to know your year around service. Please help me.