As many of you know I have been looking into buying three maybe four 72" diesel ztr mowers. I ran into a gravely rep, who I am not sure how to take him. He asked me what I had been looking at and I told him. Then he tells me that Dixie Chopper and Bladerunner have no liabilty insurance and they do not meet blade safety standards, also they run faster than osha requirments. He also said that no mower was durable except for gravely and all the other machines were a copy of his "SUPERIOR MOWING MACHINE" I watched him demo the machine doing some nice wheel stands with it but I really did not see anything that impressed me about the machine or him. Is there any truth to what he was saying about the safety issues or insurance or about his machine?