I really hate to say this as I am sure I will be slammed but I am speaking from the experience of my local pro shop who I trust very much. He who I speak of used Muzzy heads for about 20 years and over the past 10 he believes that their quality has declined especially when compared to similar heads in that price range. His biggest complaint is that the edge is not near what it used to be and he has yet to open a new box in the past few years that does not need sharpening on every single blade. He has tried a few times to go back to his old standby but is turned back every time. In his opinion their modern success rides on their past quality. By the way I am referenceing the MX-3. Ok bring on the flogging.