Hey guys. Let me say first that this is my third year mowing...I have a lot left to learn. I have read and read since I found this site the first of this year. I have noticed a lot of new guys with a lot of confidence in their posts...also I have seen some questions that I thought were very elementary to me... This is my first thread so maybe I will fall into one of those categories. I hope this is an intelligent and well thought out question. Here goes... I have read about doubling the blades...I don't understand exactly what is meant by this.... 1. How is this down safely ? 2. What is the intended purpose ? 3. In what application would an LCO use this technique ? 4. Is there another way to accomplish the same thing ? I respect the experience that is shared. Right now I want to learn and absorb the willingness to share and maybe soon I might have something to share after I am more qualified. Thank you.