Any one know some hard numbers on this "hidden" or bugged effect? AH has a post claiming it adds about 42 delay which would bump masamune up to 479 delay and 12.9 base tp gain.

this would make it easy to setup a 5 hit and caped haste build, at least assuming this effect was intended.

in any case more concrete numbers is mainly what i care for so i can actually figure out STP/haste build thats optimal. i guess an additional question is if it adds a static amount of delay or if delay gained is a % boost.