At the wrist of sounding stupid…I have taken a few trainings with a few instructors that would not really be of note on this board. Recently, I went and did my NRA basic pistol to get my Florida CCW. The instructor kept making me stop using my modern iso grip and driving to extension (as you can see Travis Haley, Chris Costa, Kelly McCann or Greg Hamilton do). He claimed that it interfered with the locked wrist (he was a weaver guy) that was crucial with combat shooting. I’m not that familiar with this concept. Does anyone still use a locked wrist with a high grasp hold? 
Locking the support wrist is the best way to control the recoil of the pistol…but fully locking the wrist does not require locking the elbows out at full extension.
that makes sense to me. This guy was trying to get my to lock the firing hand wrist!
Can one of you guys explain to me what exactly is meant by locking your wrist.
I can understand locked elbows in that they are fully extended and basically can’t go any further but a wrist has more possible movement.
But where exactly is a wrist locked? I also get the caming of the support wrist. But to lock the wrist/s does that simply mean that once you have your grip you attempt to now allow it to be altered by recoil or is it something else all together?
TB
Check out the videos on this page. He does a good job explaining the proper grip.
Thanks for those links
Here is Travis Haley demonstrating it
http://www.youtube.com/watch?v=nm9uG5bPubw
The guy teaching my NRA course wanted me to keep my firing hand wrist locked which felt contourted to me. very uncomfortable and very unrealistic.
Ahh, ok, I finally get it now. Thanks for those.
TB
Anybody teaching weaver is completely out of touch, IMO. All the people you listed in your OP are awesome shooters and you would be much better served imitating them than throwing out your technique to embrace techniques proven inferior 20-30 years ago.
Where are you located? Somebody might be able to suggest a good trainer near you.
Without actually seeing/hearing what was demonstrated it’s difficult to critique accurately, but I will say that locking the strong hand wrist is what you’re supposed to do. You don’t want the strong hand wrist to flex easily…you want it to be “locked” to the point where if I were to come along and smack you in the hand your arm would move at the elbow rather than at the wrist. The strong hand shouldn’t be in a funny twisted position or anything, but you do want to exert enough force on the grip of the gun to “lock” that wrist into place to help control recoil and ensure proper function of the pistol.
Thanks so much. Basically he was teaching weaver with the firing wrist being in the same position as the wrist position in a martial arts punch.
I’m going to see if I can get some photos up regarding it tommorow