Funny, I have a tanaka as well, like it too. The Masamoto as you can imagine is better F&F, and it should be for the money. i got my Mas last summer during the Korin sale and felt a little better with the discount about buying it. You certainly won't be unhappy with the Masamoto, but your wallet might be! To tell the truth, if I had a choice to do it over, I might opt for the Shirogami as opposed to the Aogami - but I haven't checked the price difference in awhile - last I did I thought there was a difference in price. I'm not sure us amateurs benefit all that much from the edge retention of blue steel. I have a Masamoto KS and I can get it as sharp if not sharper than my blue steel knives. At any rate the KA 0430 is certainly a "nice thing" and you will enjoy it.