What sort of armour?
BTW, I like mushin and fudoshin too, especially after zanshin.
You lost me there. All types of armour for all types of swordsmen. More pertinent to this thread could possibly be Kote, hence my favourite definition of Kotegeishi.
Most armour I would say was not so much for swords defence though, more battle armour. Motion is king. Always will be.