This year I decided to cut my customers grass at 3" unless they tell me different. Last year I cut most of them at 2.5" but found that most of them got burnt out come august. Between me cutting them a half inch higher along with more rainfall we've gotten this season, I've noticed my lawns to be greener and healthier overall. I just wondered what height you guys cut your lawn(s) at? what height do you prefer and what do your customers prefer?