The reason I thought someone would argue is that a lot of people think this is dangerous because they might come off.....the truth is that the blades turn counter-clockwise and they tighten as they turn and it is almost impossible for them to come off.....unless you stop the blades by pushing in on the clutch while they are running full speed and then they might come off and fall straight down...I have been doing this for almost 20 years.....A Kubota factory rep came to my house about 10 years ago because my dealer told him how good it cut......He said that Kubota was too conservative to endorse anything out of the norm........But it really works great giving extra lift and also with the blades so sharp the clippings are so small that they just disappear into lawn....because I cut so high.