So, Katana uses two slots.
Which means, my uselessly hybridized character, meant to be a daito-carrying, horse-arching, spear-thrusting samurai in the classic tradition -- that is to say, being able to wield spear or bow, on foot or on horse, while carrying both the long and short swords that signify samurai status.
After all, if you have not mastered spear, bow, horsemanship, and the long and short swords, you aren't really samurai.
chadz, why must you tease me so? So many pretty armor upgrades, and yet I can never again fight as a samurai. I am now just another in a long line of wannabe kensei. I can't even be good at that, with my WPF spread all over archery and polearm...
Ah, well. At least some of my other characters still work...
(I wouldn't mind paying a stupidly huge number of dinars for a 2-slot Daito set... X to switch between katana/wakizashi... a weeabo can dream, can't he?)
edit: Re: other characters; my other stupid hybrid doesn't work anymore either (bastard sword + longbow + throwing axes)...