Controlling the armed limb is the 2nd most important thing. You have to remember to get out of the way first. We say there are 3 C's when it comes to armed attackers. Clear the body (get out of the way), Control the armed limb (get a hold of it any way you can), Counter (whack him with anything available, knees, elbows, spit, bite, ect.)
When you are controlling the armed limb, you have to be careful that he doesn't switch hands. If you've wrapped his arm, try to keep him looking AWAY from you so he can't switch hands. You can use anything you like to do that. If you have a death-grip on his wrist, that's great, but he can still switch hands. Get a hold of his HAND with one or both of yours. You should be able to hold on long enough to bring down a pretty good spanking on his ass, thus diminishing him enough to either control, escape or terminate. Remember what your legally, morally and ethically able to do depends on HIS ability to bring harm to you.
Strength & Honor,
Naso Karas