Ergonomics is when the firearm you should be using and may not be because you don't like way it looks. It is when the pistol fits into your hand and it doesn't feel like your holding anything at all but it is just a natural extension of your arm. Lucky for my that gun is a 1911 and it happens to be my favorite pistol. However, if a Glock say felt like a natural extension to me instead of the 1911, I would be using a Glock. Try alot of different pistols and you'll know what I mean when you feel that right "one".