Some of us carry an S&W J or Colt DS because we’re just “ really really that good!!!
Practice Practice.
With 5 in a 460 Snubby...... who would dare approach!

While anyone can be startled.... even if you did teach Berets hand to hand back in the ‘60s...... not me.... my chief instructor ..... it’s tough to carry a big gun/lotsa ammo in South Florida at times.

My small frame pilot buddies from back then went directly to Glocks decades later and found the 1911s with OEM grips too thin.