Most front sights today are way too wide. The front sight is wider than the target, and apparently almost as wide as the rear notch, and it's hard to hit anything that way. Some folks widen the rear notch, so there's some daylight on the sides of the front sight, but that doesn't address the front being too wide to begin with. A borrowed Glock had no daylight around the front sight at all; the sights looked like a very busy wall, with only the contrasting dots and lines to indicate alignment; intolerable. I like a .10" front post, and a .125" rear notch, with is good for both accuracy and speed, as there's plenty of light around the post, which is then narrow enough for precision.