I have several zoysia lawns where I would like to lower the mowing height. They are currently cut a 3" plus. I know it is too late in the year to get the height down this year but I want to get a plan together for next year. My grasses go dormant late Nov thru early March. What would be a good strategy starting out next year? Dethatch, if so what device would you use? Have any of you used growth regualtors on zoysia?