When I first got my CHL, my Glock 17 was the only handgun I owned so I carried it. With the right belt and clothes, I can carry it without printing just fine.
However, I have since acquired a Glock 19. The fractions of an inch do make a difference, and I shoot it just as well as my G17. So the G19 has become my regular carry gun, and the G17 is my nightstand gun.