I started scalping the first week of March. I have just finished with my regular accounts. I will have some one timers and some new accounts but for the most part, I am done. I must have about 450 cu/ft of Bermuda dust in my sinus's and that is with a mask. I couldn't imagine not wearing one when scalping. I take them down to 1 1/4" and bring them up gradually throughout the year. I end up between 2 1/2 and 3". We just started aerating and fertilizing. My lawns are about to bust wide open.