One of the worst things that can happen after you hit the perfect knee bar is that you get cross faced and smashed within seconds.
Not only do you lose your hard earned submission, but now you are in a really bad spot. Well fear no more, this video I have my friend Bendy teaching a simple way of preventing the cross face.
Bendy is a BJJ Black belt and MMA fighter with a specialty in knee bars. He is to knee bars as I am to Kimura.