Been thinking about how to make life a bit easier for players who want to play katana masters. Here's what I came up with:
Two and a Half Hands
You are a master of wielding "hand and a half" weapons. You effectively have an invisible third arm that can only be used to give you a second hand on a melee weapon that you are holding in one hand and which you could use one-handed. If a weapon has a higher ST requirement for one-handed use than two-handed use, you must still meet the one-handed ST requirement.
I think this is pretty balanced. It can be viewed as an extremely limited variant of Extra Arm (Weapon Mount), or a melee variant of the Army of One perk. Thoughts?
(Also: I might be reinventing something that's already floating around somewhere out there, which I'd be curious to know if true.)