The player should have a choice -
One blade on the back; one blade off the right hip.
One blade on the back; one blade off the left hip.
One blade on the back; one blade across the chest.
One blade off the left hip; one blade off the right hip.
Two blades on the back.
Two blades on the chest.
So when you press 'R' this HUGE menu system would come up, giving you all kinds of choices for your sheathed weapons. Like TEN pages worth of choices.