Handling your sidearm is like handling your vehicle. If you are negligent or arrogant: a severe cost could result. On the range you could see stove-pipe jams, a wide shot pattern on target, and experience having to take more time reacquiring between shots. In a gunfight these errors could very well get you killed. One training factor is how you grip the handgun. For semi-automatic handguns, I recommend the Combat Grip. This grip is also referred to as the Leatham-Enos Grip, in case you want to do more research, and it’s also commonly referred to as the “thumbs forward” grip.