Blades were tested in criminals & corpses

i saw a reference recently to one of those 'professional testers' already mentioned above

cant find the linkie just now, but it did matter who it was

and it wasnt really necessary to use bodies, it was his opinion that counted
heres a blade with documented 3 Body Cutting Test

The Cutting Test was performed at Bushu (Musashi Province), Itomachi (City, District), Kiru (Cut at place) during the middle of December 1687 (320 + years ago). The tester wielded the sword very quickly with great strength that it effortlessly struck completely through all three bodies in one easy motion with great speed. During the cutting test he experienced denko (a brilliant flash of celestial light similar to that of lighting). These statements are inscribed (in Japanese) with the remainder of the cutting test "SAIDAN" data. The remainder of the test details are captioned with the images of the nakago. It is also said that some person's can easily site the feeling of "Keiki" ( A psychic feeling of the presence of another person) when handling a blade such as this.

The blade possess the following features, and (translated) statements; by the tester "Yoshisada". The personification of the blade by giving it the name, Fujimi; indicates that its abilities are "IMMORTAL", and can never be lost (never die). "Hairu", means that this has been embodied into the blade. It is believed in the Japanese Culture that many Japanese Swords have their own spirit. It is very well known amongst many collectors that some have experienced this "IMMORTAL LIFE" almost to a sense where they could feel the hairs on their neck raise up - as if the spirit of the Japanese Sword is actually present.

To encounter a (Tameshigiri or Saidan) blade with these attributes (especially as stated by the sword tester) is one of the rarest occurrences in the realm of the Japanese Sword.
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