I like 'em just fine on the Glock 17 and 26, but not at all on the 19. They don't line up for me on that one for some reason. I went out of my way to get a Gen 2 Glock 19 for that reason, and it feels much, much better. Paul Gomez of Ops Personal Security bought a Gen 3 Glock 19 and had a friend of his grind the finger grooves off. He's quite happy with it, and, as you might suspect, shoots the heck out of it.