Tbh, at the moment the katana seems okay. 1 cut, 3 speed in exchange for 7 pierce, 0.5 weight, 11 range, secondary mode, and 3000 less in cost is not a bad trade(compared with longsword).
It has a shit thrust and giving it a slightly less shite thrust won't make much of a difference overall.
So, yeah. I think I'm abstaining from voting.