I suggest going to your knees. The posting rule was originally for people who had physical difficulty kneeling or getting up off the ground.
I see fighters, who are fairly static when they fight, leave their legs open knowing they can won't be forced into a disadvantage if they are struck in the leg. This feels very cheesy.
It is very much like the rules of the Kingdom of the West about arms. If you are struck in the hand, you lose you parrying device but get to continue to fight single sword with you other arm able to continue parrying. I've heard it referred to the "bloody stump" style of fighting.
You can walk on your knees. That is fine. It makes you change your fight. To keep a leg planted, like a non-dribbling basketball player, is dumb. You are still putting the weight on the wounded leg and if it has very little impact on your fighting style, then how is this fair?
But you are allowed to post. And if you do, expect me to rush you for a sweet dagger death.
Andrew Williams