edirtyfour showed me this, and it really is like night and day between how I used to grip it, and how I grip it now.
Put the webbing between your thumb and forefinger as far up the backstrap as possible. It'll actually be on the metal a little bit. This makes your hand grip the gun at a steeper angle. Wrap your support hand around your strong hand, using your thumb to press the back of your hand into the backstrap.
If your hand still moves when you shoot, well, you're a wuss.
![Laugh [laugh] [laugh]](/xen/styles/default/xenforo/smilies.vb/012.gif)
Your hand won't be able to move at all.