 just because of the height of mowing we do. My contractor does okay. They say they're doing it three inches. I haven't measured it, but I'm doing it four and a quarter. And the only reason I'm doing it that high and not higher is one of my mowers won't go any higher than four and a quarter. And I think this year I'm going to push it up past four and a quarter because I think I can go higher and I think I can keep a better, healthier lawn that way.