Since falling off of my roof onto the driveway in 2011, my wrists (and other body parts) are a mess. While shooting, I need to keep them in the "anatomic position"; mostly straight with slight ulnar (toward the little finger) deviation. That means an open POW grip.
And even before I failed at flying I had to tell myself on calling for a target (I only shoot low gun because of my hopeless flinch) "Squeeze the grip...swing the gun". Anything but a tight right grip gives me no control. Forward/left hand of course has a loose grip.
But I'm off topic because I only shoot 3/4 oz. 16g and 7/8 oz. 12g loads...did I mention the hopeless flinch
