Microfibre is man made, quite coarse, kind of feels like your polishing your blade with a fleece jacket. The next time you clean your blade just try a cotton cloth afterwards, you will know what i mean. The best kind of cloth would be a jewellers cloth, im presuming that maybe what Jean has. A trivial matter, but if your willing to buy top quality uchiko, maybe best buying the top quality polishing cloths too. All down to personal preference, as i said, i use old cotton rags made from tshirts. "Yawn", i here you say. :D
Alex.