What do you all mean when you talk about running double blades or two blades? Are you actually running two blades on each shaft? If so how do you stabilze the blades and keep them from moving over the top of each other to neutalize the advantage. And you also talk about one being a mulching blade of some type. Can you talk about the the set-up and the advantage of this and type of blades you use at what position oand why. Thank you very much for the knowledge and help.