Excellent work as always, Paul. Thanks.
On the team, we have done that transition between the knees as the "range safe" method of transition and off hand reloading. Reloading, I don't mind. But as you mentioned in the first video, you have no mobility with your gun pinched and "knock-kneed". For off hand draw, the ISR simply keeps the weapon inverted and flush coming across the torso and when centered (more or less) we keep it braced and rotate it from inverted to right side up. Range safety may require that you start with your gun side angled downrange as the weapon will be pointed "East-West" during the rotation.