The Mizuno is hefty. The Masamoto not. The Masamoto came with a very nice hazy mirror finish. The Miz with a flat out mirror, mirror. I was just feeling up one of the Miz's today saying to myself, "I should really bust into this thing". I have to admit a little tainted predjudice to thinner knives but I know in the long run a heftier knife, if "capabable", is a better investment.
Also the Miz run short and Mas runs long. Two different beautiful animals.