Gaining
control of the attackers weapon hand is vital in an attack, but,
consider the following (something I posted elsewhere but is very
relevant here): There are some folks out there who understand this and
will use this tactic against you.
Remember that nothing is certain.
One of my instructors has an uncle (T. Black Eagle), a Native American
who very familiar with Penitentiary tactics. He has an interesting way
of setting people up (one of many that he's showed us). He'll pull back
his jacket exposing a shoulder rig with a fixed blade (handle down)
under his right arm. Standing right foot and shoulder forward, body
turned slightly away. He'll inform you that; "if you can get to it
before I pull it out, you might have a chance". If you go for it, he's
already got the blade out of his left shoulder rig (which you didn't
see him un-sheath under his jacket when he turned and showed you the
right side blade) ready on the blind side for you to come in and get
pumped. He's betting you'll try to pin/grab/contol his right arm before
he can pull it out opening you up for the left.
Yes, I know most blade
confrontations happen without the victim ever seeing the blade come
out. But, there are some folks out there who don't give a
rats-u-know-what whether you see it coming or not.
As I said, nothing is certain. Just
train realistically against skilled uncooperative opponents (hand to
hand and open hand to weapons) to better your odds if you ever have the
misfortune of being attacked with a blade.