^ Grip is something that you'll have to play with for yourself. There's a lot of different takes on it:
http://www.defensivecarry.com/forum/def ... gment.html" onclick="window.open(this.href);return false;
Towards the end (by page 4 and 5), there's an examination of the finer aspects of the grip, as based on several modern top competition shooters. You can see that each has his/her own take on how to skin the cat. It should stand to reason that if someone was more "right" than the others, than he or she should simply dominate all the competitions - but clearly, that's not true, so yes, the variations are all, to some degree or another valid. A lot of this has to do with each person's own unique anatomy, how our muscles link up with our bones, and how we can manipulate that setup to help mitigate recoil and align the sights or otherwise index the muzzle.
Under stress, I find that I instinctively crush-grip: and I crush-grip so hard that I start to shake within just a few seconds of presenting the pistol to full extension (at full-extension, my upper body is in the currently favored "Reverse Chapman" position, with a fully locked-out support wrist, using Middlebrooks' technique). My elbows don't rotate in quite as much as Vogel does with his, nor do I exert nearly the inward torque that he does on each (I'm currently actively playing with this, to see if it helps me), but it's still definitely up there. Hand pressure is "100/100," going as hard as I can from both sides per Magpul, simply because that's very instinctive for me, under-stress. Even so, I really don't find that's where my recoil control is coming from. I get recoil control mainly from that support/reaction/weak-hand full "Roll-Over Lock-Out" as described by Middlebrooks, using that hand's finger to actively cam against the rotation of the gun/muzzle about the axis that arises from the axis of the weapon/dominant hand web-to-beavertail interface. This is, as Middlebrooks' replies on that thread reveals, different from what some other top shooters do in that they have a VERY strong grip (Vogel, Cerino, Costa, Leatham, etc.) and use that to "clamshell" with their support hand, and that some even favor techniques which would multiply this clamshell effect (Vogel, with his arms, the way they're rotated inboard, for example), with the aim of controlling recoil.
Different strokes, different folks.

This is why I like going to different schools/instructors - to learn the different techniques and different subtle variations (Vogel spent nearly 30 minutes with us, cold line, on his grip and upper body technique, at this past weekend's 8-hour seminar) so that I can pick what works best for me, based on my physical build and my abilities.
Nevertheless, what this does in allowing me to get my shots on-target and to control the recoil coming from a fast string, I also know is much less than ideal for precision - whether that's surgical precision at closer ranges or simply for longer distance shots. If nothing else, the fatigue from being "100/100" itself cannot be sustained, for such critical shots. So, what am I to do?
I figure that if I were to need to take those shots, then I *must* break out of my fight/flight response. Biologically, I simply need to do so in order to just see the sights. Therefore, I train towards that end - I take a cleansing breath to "break out," I re-distribute my grip mechanics (including flagging of my strong/weapon/dominant hand thumb, a technique that is favored by Cerino), get that sight picture, and then fire.
That's what works, -FOR ME-.

That may work just as well for you, less so, or not at all.

You've gotta experiment and find what works for you.
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RE: MB's/Predator Tactical dry-fire drills -
rradenheimer wrote:
I am thinking about using my projecter on my wall for the dry-fire drills.
Sure! That would be pretty awesome!
But remember you can adjust the target size to-scale, so even if you're stuck in a hotel room, you can still do it easily enough.
