I put a taller rear sight on mine but hadn't sighted it in yet. I had a target on a cardboard box with a brick in the bottom. I shot it with no follow through and hit a little left of center. My son in law shot it with follow through and destroyed the brick in the bottom of the box. The fat ass in the red T shirt is me.
Watching the second video, it's obvious your son-in-law flinched. The flinch can be seen in the "false shot" just before the shot actually breaks. It's hard to see a flinch as the shot is breaking, however, that little push and roll of the muzzle, just before the shot broke, indicates the flinch reflex is strong in this one.
