Until this year I hadn't used one to do spring cleanups/scalping. But I decided this year I would in order to speed things up some. Anyways, I was doing a job and learned a lesson the hard way. So I thought I would share with others so they might avoid this... What I learned is that when cutting off dormant grass tight with these things, you CANNOT pass over the same area more than twice or so, or go too slow... or fiddle around trying to windrow clippings around something, etc... These things have so much lift they will literally suck everything up to where you can see bare dirt... even with gator blades on. So don't fiddle around in one place long, let your ground speed get too slow, or pass over the same place too many times.